/diy/ - Do It Yourself

>>1688899
what else do I need? I'm planning on making a flying wing out of foam. i have nothing

>GWS Style Slowfly Propeller 7x4 Black (CCW) (5pcs)
>Turnigy D2826-6 2200kv Outrunner Motor
>FrSky Taranis Q X7 Digital Telemetry Radio System 2.4GHz ACCST (Black-no plugs) (Standard Version)
>Nylon XT60 Connectors Male/Female (5 pairs) GENUINE
>HXT500 Micro Servo 0.8kg / 0.07sec / 6.2g
>FrSky D8R-II PLUS 2.4GHz 8CH Receiver with Telemetery
>FrSky Battery Voltage Sensor - FrSky Telemetry System.
>HobbyKing 40A ESC w/UBEC 4A
>Turnigy Accucel-6 80W 10A Balancer/Charger LiHV Capable

>>1688900
As mentioned in the other thread if you plan on using that motor on 3s you need 5 inch props. Otherwise get a different motor or 2s batteries.

Who the fuck made a new thread when the old one is still 70+ threads from the end of the board? This is /diy/, you don't need to make a new thread as soon as the old one reaches the bump limit, it will take several days at least for the old thread to actually reach the end of the board. All you've done is confused people who are still checking the old thread, especially by not even posting a link to this thread in the old thread.

>>1688899
>he started a new thread before the old pruned

>>1688899
By Hubsan X4 you guys mean the H107L right? I want to get into fpv racing but I'm poor, would this be decent enough for learning controls and tinkering around with?

Hey /rcg/, me and some people are working on a 3 prop (2 front and one on tail) plane UAV that'll take off VTOL style before rotating the props down for standard flight.

I was hoping to use some kind of system that would allow me to move between 2 different power supplies for the takeoff and sustained flight, but was unsure how to best go about it. Anyone know of any resources that might be of help?

Quick question, would mixing ESC's pose an issue? I've got all 30A ESC's, one burned out, and it appears the replacements say GS 30A bheli dshot, but the ones currently installed are IS 30A bheli dshot. I figured theyd be fine, given they have the same amp and software config, but what's the IS/GS stand for?

>>1691140
Spedix GS30A is a BLHeli_32 ESC meaning it runs DSHOT_1200, the IS30A is only DSHOT_600. Itll probably run and fly fine but ideally all 4 ESCs should be running the same protocol.

I think we should replace 7demo7 in the sticky with Albert Kim. He posts more regular content and gets sent tons of shit to review. They used to fly together.
https://www.youtube.com/channel/UCnJyFn_66GMfAbz1AW9MqbQ/

>>1690778
I think this is a bad idea, but this is how I'd do it. Use an Rx controlled switch (https://hobbyking.com/en_us/turnigy-receiver-controlled-switch-1.html)) to control a DPDT relay that is wired to the 2 batteries. You should power your FC/Rx from it's own power supply since it will probably lose power during the switch.

>>1691189
Gotcha, I think I already was flying at DShot 600 as I wasn't sure what to set, any links to read up on the various configurations? Figured it's time I learned exactly what's making my quad fly.

i just ordered this soldering kit, i've got a proper soldering station on the way but it will take weeks to arrive and i needed something quickly just to solder some connectors this weekend
will this give me a hard time? almost every tool store here carry these kits

>>1691321
I use a cheap as heck soldering kit. You can get it done as long as the iron is hot and your solder has lead

>>1691301
Thank you for the response. What part of it do you think is bad, the VTOL using a switching power source or just the concept of a switched source as a whole?

DESU part of the reason we wanted to do the switch was as we were testing a lot of biomass made homemade supercaps which seem like they could be an interesting way to power take-off/landing.

Turns out taking photos of a rainbow LED emblazoned hex against a night sky without it just turning into a white smear is pretty hard, but then there were surprise fireworks so we didn't feel too sad.

>>1690778
What exactly do you hope to achieve by switching to a different 'power system'?

>>1691334
The concept as a whole has a lot of failure points for little return. If you do want to try it, then I would do it with a motor glider since it could easily sustain flight even with a loss of power while switching over.

Apologies for linking to reddit, but this is incredible:

https://www.reddit.com/r/nextfuckinglevel/comments/dbjx48/100_drones_giving_a_light_show/

>>1691786
Using a setup like this for advertising is an excellent business idea where legal

>>1688899
So for an entry to FPV flying I'm looking at spending $200 minimum, right? $80 prebuilt tiny whoop, $80-100 controller is the cheapest option? Any other suggestions?

Ideally I want something that I upgrade over time, but considering the price point it seems most reasonable to fly a cheap $20 quad LOS, and then jump right to a 5" FPV once I have the cash saved up

>>1691767
Ah I see. They seemed pretty keen to try it out and I bravely (stupidly?) took it upon myself to implement. I figured the best way I'd see anything interesting from it is if I could use some kind of high discharge device, hence the supercaps.

>>1691848
The sensible way into the hobby is to invest in a decent radio straight away (eg a QX7 or X9D Lite) & to use it connected to your computer to learn how to fly in acro ('rate') mode with a simulator (LiftOff, Velocidrone, etc.).

Playing with a $20 toy quad is fun, but honestly very little carries over between LoS flying & FPV.

>>1691895
He specifically wants to do FPV, and like you say FPV isn't entirely similar to LOS. I actually find that FPV is a much easier way to introduce new people to the hobby, just set the trims, go to a limited rate mode, and hand it over. I've even had a guy pull off a perfect landing after just five minutes of flying. I think it's because it feels a lot more natural to fly from a first person perspective, rather than having to orient yourself after what something in the air pretty far away is doing.
>>1691848
One option is to just buy a cheap RTF (that comes with a transmitter and batteries) quad/heli/foam plane, one of those tiny all-in-one 5.8 cameras from China, and a cheap screen/goggle with internal receiver (for example the 40 dollar "Makerfire" box goggle). Attach the camera to the aircraft with some hot glue, make a Y wire harness so you can plug it into the battery, and just go flying.

40 dollars box goggle
30 dollars walmart "drone"
8 dollars Chinese camera

It's by far the cheapest setup I can imagine, but obviously you're going to get what you pay for and if you want to actually stick with this hobby you're going to need to buy a proper FPV goggle and transmitter anyway, so you might as well do it early.

>>1691786

Meh. You could do more and better with an array of stationary mirrored drones and a single show laser

crossposting from the 3d printing thead
>> 1692472


Does anyone know if TPU is transparent to 5ghz wireless signals?

I'm working on this antenna cradle that's printed with TPU. Many times the drone will have hard impacts on the back, and the antenna slides down the flexible cradle thing.

I want to encase the entire antenna transmitting element with TPU so it will stay put, but I don't want it to severely interfere with the signal

>>1691334
Why don't you just copy the F-35 design?
>>1691818
The battery power though.

>>1692474
Painless360 (from the OP) did some testing on this, but I haven't actually bothered to watch it because the general consensus from the community is that TPU VTX antenna mounts are fine, especially if you're not pushing long ranges.

https://www.youtube.com/watch?v=fU95FVnKHMY

I fly with picrelated setup on three of my quads & have had zero issues. It's essentially indestructible.

>>1692474

TPU does effect the tuning of the Antenna. So when you are mounting them try to use as little around the element as you can.

>>1692552
that video is exactly what i was looking for, thanks a ton

Why is TPU such a popular material for 3D printed drone applications?

Is it because the flex allows it to have better vibration dampening?

>>1692603
When you crash it flexes instead of snaps, also has a grippy rubber like texture so your GoPro may not fly off in a hard landing.

>>1692603
what >>1692607 said

drone frames are designed to handle the super high g force/impact force of a crash.

if you wanted to resist that force using a stiff/non flexible filament, it would have to be very very thick to not crack

with TPU you can make something that can endure the same crash with like 1/10th the filament, the only downside being that the part is going to flex a ton during impact

there's also that TPU has excellent shear strength along the print layers, where with stiff plastics you can have an order of magnitude less strength in the direction your print layers are going

this is also why drone frames are made out of plastics and carbon fiber instead of aluminum/titanium

Turns out it would cost >£100 to get 8 pairs of the Master Airscrew 9x4.5 triblades delivered, so I figured I'd give the ultra cheap ones on HobbyKing a go instead. No idea what manufacturer they actually are, the brand stamped on the props themselves is just 'TL'? Much more substantial than they looked on the website though, which is reassuring.

>>1692665
Why are multi blade props so hard to find?

>>1692667
Currently?

99% of larger format multicopters are used for photography/filming/surveying and other such purposes. Thus they want a longer flight time, bi blades are more efficient than triblades so why bother manufacturing them. Master Airscrew makes the props they use for x class which is more about speed, so they make triblades.

>>1692670
>Master Airscrew makes the props they use for x class which is more about speed, so they make triblades.

Triblades actually give less speed than twinblades, but they give you a lot more control/responsiveness/'grip' which is pretty important when you're trying to hurl a giant X-class around a track.

>>1692672
That kinda depends, not alot of aggressive bi blades exist these days because most people prefer triblades. Those 5065 biblades are the most aggressive Ive seen but pretty much none of the top racers use them.

>>1692670
>>1692672
The other reason is that triblades can handle more power which helps if you are lifting something heavy. Many people making heavy lift drones seem completely unaware of this fact. It is why WW2 planes started out with 2 blades but all had 4 blades by the end.

>>1692673
Something like a 5050 Cyclone twinblade definitely has a lot less responsiveness/snappiness than even a 5040 Cyclone triblade, let alone the 5046 Cyclone triblade.

>Those 5065 biblades are the most aggressive Ive seen but pretty much none of the top racers use them.

Yeah, because they actually need to be able to turn corners, not just go fast in a straight line.

>>1692673
>>1692680
Triblades require more torque which would reduce the responsiveness of the motors

>>1692687
Why do you think the entire racing & freestyle scene is dominated by triblades? Hint - it's because they have way more responsiveness/control/grip than twinblades on the same motor.

>>1692710
I am just stating the physics, take it up with Newton if you have a problem. Maybe the "responsiveness" is due to what I said earlier that triblades can transmit greater power leading to faster translation of the drone but rotation will be hampered by the reduced responsiveness of the motors therefore it's a trade-off.

>>1692727
I am just stating that your postulations around the 'science' are meaningless compared to the lived experience of literally everybody who has ever flown both twinblades and triblades.

>>1692899
Are you saying Newton is wrong?

>>1692990

With respect to drones, yes. In case you were home schooled, they did not have drones or electric motors back then. lmfao.

>>1692990
I'm saying you're grossly oversimplifying things.

>>1693024
No it really is this simple, propeller harder to spin = less responsive. I don't know why you are arguing with me for I never said you were necessarily wrong I said that adding blades increases one type of responsiveness while decreasing the other.

>>1693130
>I never said you were necessarily wrong

Except you kinda were. My point was that in the real world (which is what actually matters to the majority of people reading these threads) triblades offer notably better control/responsiveness/whatever than twinblades. You then responded by saying that triblades would _reduce_ responsiveness, because your physics textbook says so, which they just patently don't when it comes down to lived experience.

>>1693145
By what measure? Your feelings? This is not a valid measurement of responsiveness. And I repeat that there are different types of responsiveness. How well the drone translates and how well it rotates. I said that triblades improve the former in agreement with your "feelings"

>>1693159
>By what measure? Your feelings?

By the consensus of literally the whole community. Again, why do you think the entire racing & freestyle scene is dominated by triblades?

>>1693159
>>1693164

At some point we'd hope that one of you gaytards would get over this and let the other gaytard have the last word. Or we could go start another general and let this morph into the gaytards who can't shutup general.

The choice is up to you two.

>>1693164
Lmao that's like saying a certain car is superior just because everyone drives it. Triblades dominate because they can handle more power which improves acceleration of the drone but they require more torque which worsens the response speed of the motor. By your logic you can make a better racing drone simply by continuing to add blades. Why are there no 12 blade racers then?

>>1693187
>Lmao that's like saying a certain car is superior just because everyone drives it.

No, it's like saying cars with 4 wheels dominate because they handle better than cars with 3 wheels.

>Triblades dominate because they can handle more power

What does this even mean?

>By your logic you can make a better racing drone simply by continuing to add blades. Why are there no 12 blade racers then?

Because, as we've already covered, more blades means less efficiency and lower top speed. It's all about balancing the requirements. For racing/freestyle 3 blades is generally the best balance. I know people who will swap to 4 blades when flying particularly tight indoor tracks where they want even more control/responsiveness and aren't worried about losing top speed because there are no open straights long enough to get up much speed.

But seriously, have you even flown both twin and triblades on the same quad? I'm going to guess not, because otherwise you wouldn't be so fucking clueless.

>>1693180
>using gay as an insult

I'm guessing you're 13?

>>1693225
>reddit spacing
Gay

>>1693225
I think you have a good analogy in your post their. It's like why 5" frames have been such a staple to the community: different sizes and weight classes are going to allow you to be more nimble, fast, or perhaps .ore flight time/range, even what you can mount. But 5" is regarded, at least for freestyle as a good sweet spot. The same can. Be said for props - sure perhaps on a bench we could see the performance output of each blade, but sitting immobile on a bench is a far cry from doing ladders, s-turns or even having to bail/improvise on mistakes.

"Jack of all trades, master of none, but oftentimes better than the master of one"

FUCK I couldn't into ham radio. How to into drones then?

>>1693225
>Because, as we've already covered, more blades means less efficiency
Why are more blades less efficient? Because they increase drag. What do you need to overcome increased drag? More torque. Where is this extra torque going to come from? The motors. At the expense of what? Speed/responsiveness. It's fucking elementary.
> It's all about balancing the requirements.
That's what I fucking said here >>1692727 "it's a trade-off". It depends on your particular fucking design. You can't say triblades are ALWAYS better no matter what because that's not true.


You clearly don't have a fucking clue about aerodynamics, and that's okay, most people don't and this is just a hobby. But don't declare it all bullshit just because you don't understand it and it goes against your views. You're acting like some bible-belt redneck introduced to evolution.

>>1693659
>You're acting like some bible-belt redneck introduced to evolution.

And you're an internet know-it-all who can't shut the fuck up and let the tard alone. Is it your goal to argue with a brain-dead moron forever? How new are you to the internet, aka land of idiots?

>>1693333
Based and checked

>>1693623
>>1693659
Unbased

>>1693706
I don't think he is a tard, he is just being ignorant.

>>1693659
Again, have you actually flown both?

Nobody gives two shits about your 'science' when literally everybody who actually flies the fucking things knows how they behave in real life.

>>1694123
>Nobody gives two shits about your 'science'
USA everyone.

>>1694148
>what are air quotes

>>1694156
>Newton's Second Law is not science
Land Of The Free everyone.

>>1694148
>>1694161
Fuggin rent free

>>1694161
You really are a fucking moron, aren't you?

At no point has anybody renounced science in this dumb argument. Instead what I've been trying to get through your thick skull is that you can't just simplify this scenario down to your rudimentary grade school physics, there is obviously a lot more at work here - as you would know if you actually had any hands on experience with what we're discussing.

>>1694123
>>1694148
yall motherfuckers literally arguing over nothing on the internet, enhance your zen like these beautiful electrolytic capacitors sitting in a row

>>1694174
>there is obviously a lot more at work here
Like what? Voodoo?

>>1694250
Like the rest of physics? Do you honestly believe that 'more blades means more torque means less responsiveness because Newton' sufficiently captures the complexity of this physical system? And again, do you actually have any real world experience?

I really hope you're just trolling by this point, because I don't want to have to accept that anybody is genuinely this fucking dense.

>>1694268
>Like the rest of physics?
What other physics? Please explain rather than trying to handwave away your lack of knowledge by claiming there's "some other physics" governing it.
>Do you honestly believe that 'more blades means more torque means less responsiveness because Newton' sufficiently captures the complexity of this physical system?
Yes. Let me explain to you one more time. Each blade produces drag. More blades = more drag. To overcome drag you need torque. More drag to overcome = more torque required. It really is that simple.

This thread is a shitshow. Post pics of your drones or something, guys

>>1694306
One of those retards just has to stop posting but both want the last word. Just go fuck and get over it.

>>1694285
He's right. I once built a 12 blade prop, there was so much drag that it just sat there and hummed for like, 5 minutes. Once it finally spooled up and took off it was responsive as FUCK though!

i made a picture to commemorate this awful thread

>>1694343
Now THIS is shitposting

I need to get an indoor whoop for winter season, mostly for 1S. I'm mostly eyeing the mobula 7 currently, as it seems to oerforn decently on 1S, and isn't too heavy for indoors, judging from videos I've seen.

>>1694574
Just my opinion but I dont like brushless for indoors, I had a Snapper6 when they first came out and it was way too quick and powerful for indoor flying. If you really want something for indoor use Id say either buy like 3 of those super cheap whoops Eachine sell on Banggood or build your own legit Whoop.

>>1694285
And let me ask you one more time, because you've avoided answering this question umpteen times now - have you actually flown both types of prop on the same quad? Or are you making sweeping generalizations about something you have zero real world experience of, based on a laughably primitive application of 'science' that completely fails to capture the complexity of the system?

People who race/freestyle use triblades over twinblades because they know from _actually trying both_ that triblades have more control, more grip, more responsiveness, more snappiness, whatever the fuck you want to call it. Do you honestly think that this lived experience of the entire miniquad community is some sort of mass hallucination? Or is it just maybe more likely that your oversimplification of a complex fluid dynamics scenario is bogus?

>>1690349
The better option would be a real transmitter (X9 Lite on racedayquads . com for $70 last I checked) and a simulator like velocidrone or DRL sim. You use the transmitter and gimbals you’ll use on your real drone and fly something that handles like a big quad instead of fumbling around with a toy drone on a toy transmitter.

>>1691886
Making a VTOL plane sounds super fun but you’re going to have a lot of yaw control issues going with a 3-prop design. With 4 props you can make it pick up like a quad then just servo your motors forwards to fly it like a plane.
>two power systems
No. Just run it off one big ass battery.

>>1694575
You can find lower pitched props for some sizes that will dampen all your controls. Additionally, you can set a throttle cap in Betaflight that will do roughly the same thing but pitch and roll are still snappy. I like to go that route so if I’m flying in a small park or something I can throw normal props on and rip with the same hardware instead of needing two different whoops.

>>1694597
Dude. The guy clearly has some mental handicap. Leave it be.

So now that the dust seems to have settled, hows everyone getting along? Bought 8 packs only to be stuck inside due to rain. Wish I had something for indoors to harass the cat.

>>1694285
Less blades means they have to spin faster for the same amount of lift and drag is proportional to the rotational speed SQUARED.
Do some math yourself, idiot.

>>1694802
Cars are good fun when the weather is bad & you're bored of flying micros indoors.

UFO bois

>>1694831
Post the gimbal video

Forgive me if this is in the OP, but does anyone have a good article about choosing motor and prop sizes for planes?

>>1694882
There's nothing really in the OP, but you can check some of the sites or youtube channels that have fixed wing like flite test, rag the nuts off, arxangel, etc. Mostly it comes down to wingspan and weight, what are you trying to fly?

>>1694890
Me and some buddies want to make a moderately long range plane, 20-ish KM with optional return journey, so we can fly it to each others houses and chuck it in a park. Probably gonna 3D print a flying wing shape, which might not be optimal from a weight standpoint. I think control wise we can figure it out and just throw more money at the problem, but Im not sure what I should look for in terms of power. Im assuming big props at low speeds would be good for efficiency?

>>1694897
Do you have any experience flying? You said you want a long range autonomous plane and a park flyer in the same sentence. 3D printed planes are possible, they're just not that common. You didn't answer my questions. What is the wingspan? What is the expected weight?

>>1694904
By "chuck in a park" I just meant crash land at the end of the flight. Im actually a pilot but have never tried an RC plane.

Doing some back of the envelope calculations, a meter wide wing would weigh around 800 grams with a seriously low aspect ratio, so 900 grams should be a safe number even if I need to stretch it out. Honeycombed plastic is actually a lot lighter than I remember. No clue what I should be estimating for the batteries and motors though.

>>1694875
https://youtu.be/5KTFkLnLD6A

>>1695130
It's so smooth

>>1695175
Of course these days a Hero 8 or Osmo Action would probably be just as smooth even without a gimbal, but I already had the gimbal & didn't fancy spending £350+ on a new camera.

>>1694929
If you're new to RC fixed wing then 3D printing isn't a good idea. It's the sort of thing that people do as a challenge, to prove that it can be done, not because it makes any sense to do so. Anything 3D printed will likely explode into a million pieces the first time you dump it in the park at the end of the flight.

If you're intent on DIY, then build something out of foamboard. If you're happy to assemble something kit-based, then there's a whole world of EPP foam options for any budget.

Take a look at ArxangelRC in the OP - he does a lot of long range, semi-autonomous fixed wing stuff & will get you started looking into Arduplane etc.

Is Le Drib the biggest faggot in the RC world?

>>1695316
This means so much to you that you came all the way here to type that out and post it? You must be looking for someone else to hook up with.

>>1695333
Sounds like you might be in a close running for second place.

>>1695345
Let’s just have a 3-way.

>>1695316
Le Drib wears eye liner but Steele is an edgy hipster, kind of a toss up.

>>1695345
>>1695316

you thought your opinion of le drib was worth airing to the world, which is pretty weird desu.

i'm kinda at a loss at why you would post this on an anonymous image board. you're not tripfagging so there's no circle jerk/virtue signaling component, and nobody else seems to hate that guy enough to make your post a thread derailer either. do you want validation? are you trying to change peoples minds?

then some guy calls you out for exactly the above, and you call them a fag too.

i can only assume you think anonymous people on an anonymous image board should care about your opinion, and based on how you react when someone doesn't care, you probably have narcissistic personality disorder

>>1695354
Just curious to see what others thought of him. Not looking for validation, circle jerking, or trying to change anyone's opinion.

I think he's the worst thing about Rotor Riot, and that is saying quite a bit. He can pilot well, but he's annoying as fuck from a personality standpoint.

I have 2 "nib" DJI Spark batteries. However I don't have a Spark. I want to trade/sell them, but I can't tell if they are any good. I pressed the button on the front, no lights are shown. is this normal?

I think I am supposed to charge them to 100% which would take them out of hibernation.

Then someone told me you need to use the official charger to do this.

Any tips?

>>1695556
Lol, your Target got them on clearance, too?

>>1695581
no that's pretty funny though. If I had them new I'd just sell em as-is. These are more I got both for $40, told they were new.

>>1695556
>I pressed the button on the front, no lights are shown. is this normal?

No, that means they've been completely discharged & may well be dead.

>>1695643
well that sucks the suck. Can I use a generic spark charger, or do I have to have an OEM one for the "first charge".

look at this weird ass thing I found at an auction. It looks like it might have been some kick starter thing. I'm assuming the internals are some generic spectrum controller kit?

https://imgur.com/a/Vp2a1VB

>>1695670
Looks like the 'B' kickstarter car thing. Their page says certain pledge amounts come with a Spectrum Dx6i so yea. It was a 2013 peoject though so I think youd be lucky if it had an F3, but its more than likely an F1 or worse.

If you can figure out how to reverse engineer it, or if its just wired basically Id replace the FC. You may have to look up some kind of manual to figure out how to go from car to quad and possibly rework it though.

https://www.kickstarter.com/projects/2017062404/b-go-beyond

>>1695654
Any off-brand charger for a Spark will work, you can even buy one from Amazon then return it when you're done. However even if the batteries seem to charge correctly, without actually having a Spark to plug them into you won't know if they're fucked - the LEDs can show fully charged but once you turn the drone on it can refuse to use the battery if it measures anything wrong with it, so whoever you sell it to may come looking for you after.

>>1695739
That's fine - I'm not looking to screw anyone over. Thanks for the tip.

>>1695681
Thanks, I used this info to track down the manuals and stuff. It's pretty frustrating - I won the auction for $20.. and then the bitch spent $170 on shipping and charged it to my card. So it went from a cool "hey whats that" to "fuck can I sell this thing?"

Doesn't look like much to reverse engineer - I mean this is just straight forward hobby stuff I'm assuming.

https://xerall.com/wp-content/uploads/2019/02/b-ex-en-manual-hires.pdf

what does F1 F3 mean. Car is kind of goofy, and seems more like something of a novelty than being really fun to zip around in.

>>1695875
I would dispute that charge or send it back, shits not worth even half that.

F1/F3 is the processor type in the flight controller. F3 is the oldest "acceptable" model these days, anything F1 or older is pretty shit compared to an F4 or F7.

>>1695353
Steele’s videos are great if you mute them. Le Drib’s flying isn’t that impressive by today’s standards.

>>1695875
$170 on shipping... from where? eBay? If you use PayPal I’d have claimed fraud on that one. Anyway, the first major hobby grade flight controller for quads was the Naze32, later surpassed by the F1 chipset, then F3, F4, and the latest and greatest F7. It’s just a reference to the processing power of the main MCU on the flight controller board.
>F10 isn’t a real thing, they use an F7 for the main PID loop and OS and then a separate F3 just to handle the high speed gyro and filtering

>>1695875
ebay/paypal will side with the buyer 99% of the time.

>>1696016
Funny enough I think about the exact opposite. Most of what Steele does is cinematic, Drib pulls off WAY better stunts.

>>1696048
This was kinda neat I guess.
https://youtu.be/L0BwMveOewA

>>1696082
I mean, 90% of Steeles videos are flying through construction sites and power looping cranes. Steele is better at editing and doesnt wear eye liner, but Drib is blatantly a better pilot.

>>1695316
Maybe, but I do enjoy his flying style. The way he does those turns that stop so smoothly is fun to watch.

>>1696010
>I would dispute that charge or send it back, shits not worth even half that.

It legit cost that much to ship. It was from Canada, and she padded it like a motherfucker. I think she was pissed she had to ship it or something. I used my CC, so I can dispute, but it's through an auction company and I want to make sure I won't get blacklisted, so going through them first. But yeah, I would have told her to cram it into the smallest box the fucking thing would fit in, or just throw it out.

I'll price it stupid high on ebay and see if maybe someone wants it.

>>1696116
Unless you live in the Africa or some shit theres no reason shipping from Canada should be $170 for something thats weighs less than a pound. Honestly think whoever sent it to you may have pocketed an extra $100 bucks and called it a shipping charge.

>>1696016
>Anyway, the first major hobby grade flight controller for quads was the Naze32, later surpassed by the F1 chipset

Naze32 uses a F1.

>>1696124
Only the Rev5 and Rev6.

>>1696125
What did the earlier revisions use?

>>1696128
Honestly now that Im looking at this they may all use the F1, but I also cant find any specifics on Rev0 to Rev4.

>>1696130
Yeah that's what I thought, the whole '32' part in the name was a reference to the fact it used a STM32F1.

>>1696135
Well the 32 is actually for 32 bit but you know.

>>1696138
Yes, because they moved from ATMega328whatever to... STM32.

Hey peeps! Couple quetsions here...
I got an old drone and radio given to me so I can get into the hobby but before I take it out for a spin on LOS and i start considering fpv I'd rather get some simulator action... The radio is a turnigy 9x and the drone has a naze rev5 with 12A afro ESC's and DYS BE1806-2300kv motors with a bunch of spare dual props... Now I'd like to flash opentx to the radio and install a module so I can get telemetry on my quad and a nice fun mod project out of it, I think the internal FrSky DHT module is still the way to go as far as economics go and then find a suitable reciever, but correct me if I'm wrong and if multiprotocol is something I could do instead of that...
I'm also looking into buying an F4 or F7 flight controler and using betaflight with one of those so I can interface with my computer and use the radio, should I bother with replacing the ESC's and motors aswell seeing as how everyone claims how much nicer F4 and F7 chips work and those tend to be on stacks with 4 in one ESC's or those are still decent?
Thanks in advance!

>>1696260
Id replace the motors and ESCs as well. If the FC is that old the motors are massively inefficient and lack power compared to todays motors, and the ESCs are probably running Oneshot or some other crap. You could use a 4in1 but its not really necessary and considering youre new may be more expensive in the long run.

>>1696281
Gotcha! Gonna have to make my homework on prop and motor sizes aswell... I checked the resources on the wiki, but I don't think I want such a very battery hungry setup for starters.

>>1696387
Youre going to want 2206, 2207, or 2306 motors,,and depending on your frame 5 or 6 inch props. Just cruising around, not really doing any max throttle punches or fancy shit you'll get like 7-8 minutes in the air flying bi blade 6 inch props. But as mentioned your frame may not be able to use 6 inch props. But at that if the components are that old the frame is probably old as fuck too, so you may honestly replace it as well.

Give us a picture of the whole thing.

>>1696473
Sorry for the low res and less than optimal picture, the frame is 20 centimeters long but I'll give you the names of the things as I was given the hobyking invoice along with it. the frame is a HobbyKing FPV250L (listed online as 160 grams), the spare props are some double blade gemfan 5x3's so I guess 5 inches and two turnigy 3cell 1300mAh batteries, which apparently where put on storage mode with a discharger before sitting for a long time... I could snap a better picture and weigh the whole thing later though.

>>1696495
Gonna be honest with you man, that thing is ancient, there is not a single part in that build I wouldnt recommend replacing. That being said, buy one of those cheap ass FPV camera/VTX all in ones and give it 5 volts or whatever from the PDB/FC and practice on that thing. I doubt it will fly very smooth but you can get your first few dozen crashes out and learn without any loss when you trash it.

After that follow the link in the OP and build a new quad with J Bardwells 16 part guide.

What's everyone's fc of choice? I've had 2 dal rc aio f4 boards osd burn out and I'm pissed

>>1696503
Got it! Thanks for the help my man! Will look for build with 6 inch props.

>>1696646
I’ve had a lot of luck with the relatively inexpensive Matek F405.

>>1696123
I've worked at DB, it legitimately is very expensive for a civilian to ship something abroad, especially overseas. Shipping just inside the EU for a packet that size and weight could cost 25 dollars, and that's only possible because there are no customs checkpoints. Shipping from the EU to Canada could easily cost seven times that (175).

Shit like this is why I never buy auctions from outside my own country. A lot of people put "international shipping" or whatever as an option and expect that it'll cost twenty euros, same as when they first bought it from China, but China has had a super advantageous contract with the international mailman union, and shipping is cheaper for businesses in the first place, because their stuff is so much easier to handle. If Aunt Margaret ships a sweater, she might wrap it in a shopping bag and tape the label she printed at the library onto it. These labels often tear off, the parcels often are bigger or heavier than they're supposed to be, they get stuck in the sorting machine... Businesses send parcels in cardboard boxes with glued on labels, and if a box weighs more than it's supposed to our contract with them says we're allowed to charge a steep handling fee.

>>1691818
>where legal
fuck it sucks to live in socialist country

>>1693225
keep moving the goal post, fag

>>1696771
>wanting corporations to be allowed to sully the literal night sky with advertisements
It must really suck to have such a capitalist perspective.

What's the best FPV goggles currently?
I'm looking for something with HDMI in and 720p native resolution or better.
I keep looking every few months and always wind up disappointed.
The newest DJI goggles looked really promising, but they only accept composite video in.

I know I can just get those cheap box style goggles, but I'm looking for something more compact than that.

>>1696866

DJI goggles are nice but only if you fly freestyle and you only have 1 quad.

If you have multiple quads you like to fly its probably a bad idea to go for DJI.

If your not getting DJI the best alternative now is Fatshark HDO's with a Rapidfire module.

>>1696889
I know I'm kinda just bitching about everything, but the Fatshark HDOs seem too expensive for what they are.
If they were priced at $300, rather than $500 I might consider them, but they really don't seem to be worth the premium.
I've seen several reviews mentioning issues with the HDMI in.

Yea I bought into HD3's before rapidfire came out and I have been flying with them for about 2 years.

Eventually I want to upgrade to a digital system if something good comes out. I thought about getting HDO's with rapidfire but its just a hassle to sell the old ones and buy the new ones so I just wait.

Rate my 3D printed wing.
It's a Clark Y foil in three pieces. The central piece will have some sort of slot and strap onto the fuselage with a rubber band, the two outer parts are connected with a slot and three M4 bolts. There'll be a wooden dowel running through the whole thing for additional strength, on the leading edge. The motors are held on by only three bolts because of the space taken up by the dowel, but I think it'll be good enough. The props in the picture are just placeholders to help me with designing the fuselage, ignore those.
No control surfaces, I plan to control yaw via differential thrust, and to have roll and pitch in the tail (probably going for a V-tail, but could also consider a T-tail if it turns out too tail heavy).

>>1696986
Prop wash/10

>China has had a super advantageous contract with the international mailman union

fucking this. makes it impossible to compete on small items. It's literally cheaper to ship china->LA than for me to ship TX->LA on some usb cables.

>>1696768
>>1696123
It's legit. I wish they HAD ripped me off, I could just reverse the charge. Instead, they packed it super super well, with like 6+ inches of padding all around, plus insurance, etc. my problem is they didn't bother to check with me first, especially when the shipping price: product value is that fucked up.

>>1696889
>If you have multiple quads you like to fly its probably a bad idea to go for DJI.

like multiple at once? that just conjures up some matrix level shit, piloting your swarm around with your bee-like hex-domes over your eyes

>>1696986
don't use a wooden dowel on the leading edge, use a carbon fiber tube at the thickest part of the chord.

>>1696866
The DJI goggles may be the 'best' in terms of image quality, but it's important to appreciate that they are an incredibly restrictive closed system which will sorely limit what you can actually do.

>>1697046
Thanks for the tip. I initially planned to use carbon, but couldn't find any place in my country that sold them. I'll give it another go, but mail ordering isn't really an option so I might be stuck with wood. It's moved to the thickest bit of the wing now, it's harder on the CAD but I agree it's obviously a better location.

What reasonably priced FPV goggles do you guys recommend? I've been using a cheapo screen bolted to my controller for a while, but I want to upgrade into something more practical. I wear glasses, so it probably should be something that can work with that.

>>1697411
I use this, it fits over my glasses and has a built in diversity receiver. $179
https://www.youtube.com/watch?v=2ESz6cUEeww

>>1694831
I'm a pincher when flying my 5", how do you like those pole ends on the taranis? Thinking about getting those since they seem to be aimed towards pinchers.

>>1697411
I was using the ev800ds for my first 100 or so packs, they work wonders for the cost. I recently upgraded to a pair of old fatshark hd1s (800x600, 45degree-ish fov) and while they're certainly better there's not a massive difference. For the price the ev800ds work really well, and you can fit glasses inside them.

>>1697498
>>1697443
Thank you both, I went to the hobby shop today and found that they actually had the FXTs in stock, so I've got a pair now. Haven't flown with them yet, it's raining, but I've tried them out in the living room and so far they seem pretty great. I wasn't expecting to get both diversity and DVR that cheap.

>>1697265
>>1697046
Nope, no carbon to be found anywhere. I did find something else that might work though; a square-section steel rod. It's going to make an already heavy plane even heavier, but I don't think this would bend or snap even if I dive directly into the ground.
If (or rather when) this doesn't work I'll try the wood.

>>1697496
I _really_ like them (as a pincher, obviously) but from my friends' reactions to them they're definitely a love/hate thing. They have none of the sharp pointy grip at all. I particularly like them because they're long enough to comfortably have two fingers on the shaft.

I've recently bought the X-Lite Pro & fitted the longer stick ends on that, which are shorter & do have some of the spiky bits. I feel like the shorter sticks & throw of the X-Lite are better for freestyle, while the longer sticks & throw of the X9D are better for less aggressive, really smooth control.

>>1697835
you're better off with the wooden dowel. A little flex is ok. One other option would be a flat piece of aluminum turned on its edge.

>>1697835
>steel rod wings
You should bring that thing to one of those "foamboard plane battle" events. You'd probably slice them in two if you ram them.

I need your help.
I want to set up real time video tx on an RC robot but was told I need a radio Technicians license.
How can I get at least 200 meters LOS coverage without a license?
I'm almost tempted to just buy a DJI Phantom and rip the camera and tx out.

>>1697984
Just do it lmao

>>1697984
Are you going to face industry inspections, are they likely to know the difference? In RC hobby, it's very common to have a 25mW video transmitter legal limit, but this is something literally everybody flaunts because the police have no idea that the rule even exists, much less how to actually check what your transmitter is set/built to.
If you just want to transmit the video 200m LOS, you have essentially two options. For higher quality video, think 720p from a GoPro, you will want to use WiFi. There are premade solutions for this, it's essentially the same stuff used in the cheaper DJIs (the expensive ones use something proprietary). For lower quality video you can get away very cheaply, analog video over 5.8GHz. There are all-in-one solutions for this to buy, they have camera, transmitter and antenna in one little box you can just glue to your robot, but you can also buy separate cameras and transmitters if you want it to look more professional and be a bit higher quality. If you're not going further than 200m and there's no tall grass/trees/fences in the way, 25mW should actually be enough, in which case radio rules generally don't apply. The screen will start to get fuzzy when you get about halfway there, though. But you can buy a 100 or 200mW transmitter if you want really good quality out to about a kilometre away, it probably won't cost any more.

I looked up some prices, and for the 25mW all-in-one analog camera, you'll be paying $7. For the 200mW analog camera+transmitter, you'll be paying $30. For a WiFi camera+transmitter you'll be paying $70, but it only claims a range of 150m so it would probably be higher in reality.

Don't actually buy a DJI to rip the camera out though. All that stuff is integrated onto the same board, and they use GPS and all sorts of stuff to force you to comply with local laws. They even reduce WiFi range to about 100m if local law says you're not allowed to fly outside LOS. If you take it apart, it will cease working.

>>1697984

Just use the DJI FPV system. It will get you 200 meters for your robot.

If I update my ESCs to use ESC filtering will the Dshot beeper still work?

Betaflight 4.1 is almost out. They just released the configurator and I am thinking about the RPM filter for my quads. But I really like the Dshot beeper.

If I use the RPM filtering and that kills the beeper I will need to buy a new separate beeper and put it on the quad.

its really useful to have a beeper when you get lost in some tall grass.

>>1696734
Nice I'll check it out. I've been using the omnibus f4 aio and it's been reliable even in heavy rain flights after I silicone conformal coated it. But one of them started to have range issues after a while even after I replaced the rx

>>1692665
That picture is so beautiful, saved. Did you use your phone to take it?

Should I put balsa wood supports in my foamies wings?

>>1699045
No, that was a proper full frame mirrorless camera with a flashgun. My $200 Xiaomi phone doesn't take quite as nice pictures!

>>1699066
Carbon is the /best/ choice, but balsa is significantly better than solid foam with glue seams, assuming the weight won’t be too much of an issue for your motor.

>>1699005
Interesting. What receiver are you using?

>>1699066
Steel is the latest fad. >>1697835

>>1698872
I don’t have any BLheli32 ESCs, so I’m not 100% sure but from the documentation and the JB video about RPM filtering, it doesn’t sound like it would prevent using an ESC beeper. You’ve got to run on DShot300 with feedback to use RPM filtering. IIRC DShot300 still has a beeper function.
That being said, a real beeper is way louder and only costs like $5.

>>1696986
Span efficiency looks bad, improve the shape.
>>1694815
I was comparing at the same RPM. The 2 blade may not even reach the extra RPM required to provide the same thrust as the 3 blade which is why 3 blade usually gives better overall responsiveness but if your quad is really light with weak motors then 2 blades is better
>>1694597
This entire argument is stupid, I never even disagreed with you I said IT'S A TRADEOFF.
>>1694329
Well you saw for yourself that it took longer to spool up because there was more drag but once it did it was responsive because lots of thrust literally exactly what I have been saying.

Someone is trying to tell me DYS has gone out of business. Is this true? Theres literally only 1 source claiming it and he cant provide a legitimate source proving it.

>>1699276
Oscar Liang is a trustworthy source.

>>1699276

Other people are saying it too but they just are repeating what they heard. That is how info spreads word to mouth.

>>1699116

You can use BLheli S esc's for RPM filtering now.

But you have to buy a firmware license and upgrade them with JESC.

Does anyone have this file?

The Lego drone file

>>1699116
Dshot frequency doesn't affect if the dshot beeper works, why would that?

>>1698872
Dshot beeper still works normally even with telemetry enabled. I have no idea where you got that idea in your head.

Also, as a fun bonus, if you flash jesc, you get a different startup tune for your esc's, which in itself is worth the price :DDDD

>>1699270
How's this?

>>1699475
What's the AR?

>>1699477
100mm wide in the centre, 55mm wide at the tip. 11.7mm thick in the centre, 6.5mm thick at the tip. Wingspan is 750mm.

I've directly scaled the wing down from Focke-Wulf WW2 bombers, which this is meant to imitate in style, so if these measurements are very bad I guess Hitler's to blame.

>>1699520
You need the projected planform area also, then divide by the span

>>1699475
Better.
>>1699520
*Goering's to blame

>>1699615
Hitler fucked up a bunch of the programs with inane requirements

>>1699623
True.

>>1699520
>>1699615
>>1699623
Mainly in the Amerikabomber project. The twin-prop medium and light bombers weren't too badly affected by politics. You did have Göring insisting on making a wooden heavy fighter, because of how impressed he was with British piano factories making the Mosquito, which was a moderately successful heavy fighter/light bomber later used with radar as a night fighter, but that sort of thing was it. The German mosquito never made it past prototype anyway, because the only German factory making decent wood glue got bombed (no, that's not a joke, this destroyed glue factory is also why the Volksjäger jet was cancelled).

It's not like Göring was wrong about the Mosquito. Even the Soviets had better heavy fighters than the Mosquito, but since so much of it was made from wood you could make the parts in furniture factories and even home workshops, and then only need military factories to do the assembly. Lets your carpenters do the same work you'd otherwise need rare aluminium welding skills and such to do. It's better to have a mediocre plane than no plane.

>>1688899
I am converting a basic foam glider into an rc plane. I only have 3 servos. Should I use ailerons or elevator?

>>1699933
You only 'need' 2 servos, just do elevons. Use the third for the rudder if you fancy it.

>>1699973
>elevons
What did he mean by this?


My foam glider isn't a triangle wing

>>1700010
You can do elevons without a delta wing.

>>1699927
>Even the Soviets had better heavy fighters
Soviets get a lot of shit, and rightly so, but their WW2 vehicles actually weren't all that bad. Their high casualties come mainly from poorly trained personnel (pilots who could count their flight hours on one hand going up against Bf-109 pilots who had been fighting for two years) and moronic deployments (sending Il-2 dive bombers off alone even though there's no air superiority "because they're armoured", for example). I-15 and I-16 were obsolete by the time the Soviets entered the war, but just a few years earlier during the Spanish civil war both types were strong contenders for best warplane in the world. La-5 and Yak-9 were both quite capable of fighting an Fw-190 evenly. Il-2 was a very capable tactical bomber, and the only aircraft that was actually an effective tank hunter thanks to its PTAB bomblet launchers. Pe-2 was a medium bomber converted to a German-style tactical bomber just before the Soviet Union was invaded, and it was without doubt one of the best such planes in the world. Their loss rates were staggering by our standards, but as they were operating without any fighter support it's actually remarkable that their losses weren't much greater. 1941 was a pretty shit year for them, and most of their planes then were pretty obsolete, but just a year later they had some of the world's best low-medium altitude planes in production and entering service.

One area they actually were lacking was, ironically considering your comment, heavy fighters. They basically strapped some guns on a Pe-2 and called it good enough. It really wasn't. Heavy fighters and converted bombers aren't the same thing. You can make a decent bomber from a heavy fighter, but it doesn't work the other way around.

We shouldn't be mocking the Soviets because of the quality of their equipment, because most of it was alright, we should be disgusted that they suffered such enormous losses.

>>1700029
Soviets did have air superiority after Kursk though, and they still lost staggering numbers of planes and men.

>>1700029

I'm not even clear on what role a Soviet heavy fighter would have had to play in either the defense of Stalingrad or the invasion of Nazi germany.

It's not like the Pacific where you have thousands of square miles of empty ocean to deal with, so you don't need the range of a heavy fighter like the P-38. And the Soviets had perfectly nice 37mm cannons on a variety of their aircraft, so who the fuck needs an airplane with heavier armament than THAT?

>>1700062
The Pe-3 was designed to be a night fighter. Your guess is as good as mine why they didn't just use normal fighters for that, it's not as if they put radar on it anyway. More eyes and a better avionics suite maybe?
I honestly can't see any benefit to a night fighter without radar or at the very least infrared. If you needed more eyes then why not just put a second seat in a MiG? It's already a fast-climbing high-altitude plane that can carry rockets, just replace the machine guns with the ShVAK and maybe make it a tiny bit longer.

>>1700098

Probably strictly for night escort duty. You know exactly where to find the German night fighters so you don't really "need" radar. Just fly above & behind your bomber formation until the shooting starts. That is exactly when more eyes come in handy.

Hey guys what's going on ITT?

>>1700107
That wasn't what it did, though. It was meant to intercept German bombers to prevent more attacks like the Moscow bombing raids. I don't know about you, but if I'm flying in a German bomber over Moscow, I'm doing my best to make sure there's no tracer fire or lit bulbs or such visible. The Pe-2 was a reasonably fast and maneuverable bomber, so as a heavy fighter it wouldn't have performed terribly, but I still think that for a night fighter/night interceptor you would want radar.

They must have known that radar existed, both Britain and Germany had been training radar operators for their own night fighters for three years at this point. Maybe they were expecting Brits to give them some AI Mk. IV radar sets through lend-lease?

Finally got tired of breaking off my VTX antennae and replacing arms on my chinkshit race quad, so I moved the guts over to a Source One frame. Did I do good /diy/? Also threw on a Caddx Turbo Micro I found on sale because the stock camera made it hard to differentiate... well anything. Loving the camera so far.

I put the new Betaflight 4.1 on both my quads and I really like how its flying.

Later on today I think I am going to try out the RPM filtering. But just using the default settings its flying better than older versions.

>>1700387
Jesus fucking christ if they jus didnt touch SA Id be 100% happy

Btw theres a github page with vtxtables for most txes

Ok, Ive updated my esc's and tested RPM filtering and this new feature impressed me.

I noticed a really good flight characteristic at low throttle. And its very smooth overall. The sound of the motors is nice.

I have only flown 8 battery so far and I was adjusting the filtering sliders to give me less and less filtering. My motors stayed very cool up to 1.5x

I will push it even father up to 2.0x later when I fly more. Just testing to see how the motors do and if they stay cool.

I have BLheli_S esc and I used the JESC firmware upgrade.

>>1700602

Yea I had to screw around with Smart Audio to get it setup properly but Ive got it how I like it now.

>>1700609
JESC is fckin awesome
I'm a /g/ fag and i try to keep my quad open source. That's one of the reasons I don't run blheli32. It's great I can have superb performance without going proprietary

Heyo, i'm currently finishing picking part for my first diy quad and I was wondering, what is the best fpv part retailer for eastern europe?

I just flew a bunch more packs and I am confident in saying 4.1 with RPM filtering is the best Betaflight firmware yet.

I set my Master PID slider to 1.5x after a few flights and my Filter sliders all the way to 2.0x.

Motors are still perfectly cool after flying and the tune seems just right.


I fly a 5 inch 4s rig that is on the heave side so 1.5x PID master slider is best for me and I can get away with putting the filter sliders all the way to the right at 2.0x because I have the RPM filter enabled.

>>1700668
Severodnaya Komsomolsk Remotechaskaya Kontrollaya.

>>1699110
Fli14+ with a flysky fsi6 with full batteries

>>1701154
doesnt really help by much but thanks, russia boi

Been playing around with Pids and filters to remove all propwash.

I have my Master Slider now up to 1.7x and I turned off the Gyro Lowpass 1 and 2 filters.

I tried to turn off Dmin and that made propwash noticeably worse so I turned it back on.

But right now I would say my tune is 95% of the way done.

I was doing flights and recording them with the gopro and then looking at the propwash shake after my flight test maneuver and seeing how much the screen shaked. I have the settings now so that its giving the least amount of shake.

I might play around a bit with the P and D Gain slider. But there is nothing else to adjust.

>>1701103
BF 4.1 stock PIDs are better than I could get my quad flying on 3.5 after two days lol. Still contemplating buying the software for my ESD to run telemetry though.

Hey gents, how safe really is using a parallel charging board? Say if I have 6 1300mAH 4S packs can I just set my balancing charger on like 1A and leave them all on overnight?

>>1701734

Ive got two quads with exactly the same components both on 4.1

One of them has the JESC update for RPM filtering and the other one does not.

I really like the RPM filter quad and its worth the 5 buck upgrade I think.

>>1701740

I would never charge overnight because you are not watching the batteries when you are sleeping.

Bad things can happen when charging and you dont wanna get woken up because of a battery fire. You should always keep one eye on batteries while they are charging.

I think I might have gained about 20-30 seconds of cruise time with BF 4.1 and RPM filtering.

Could a "tiny whoop" type drone be modified to carry and power a 200mw 5.8ghz FPV camera to 500+ meters in altitude, loiter for at least a minute and safely return?

My plan is to:
-replace the soldered-in battery with a more powerful one
-replace the brush motors with brazillian ones
-remove the pathetic 1-inch wire antenna from the remote control, transplant an antenna from a cracked-open Xiaomi wi-fi extender for an absolutely hung transmitter ready to spread its electromagnetic seed across hundreds of meters
-remove the camera and Wi-Fi transmitter from the board, solder on a real FPV camera

I'm quite new to this, and I'm not sure where the gains of larger batteries with more powerful motors begin to diminish, or if the flight board can even accept upgraded components. Do I just check the OP links for that stuff, or is it something I can figure out from the writing on the circuit board and connection points?

>>1701811
>I'm not sure where the gains of larger batteries begin to diminish
It's at twice the mass of the drone.

>>1701811
If I’m understanding what you want correctly (getting up to 500ish meters and cruising around) I would recommend something larger than a whoop. Smallest I’d go to strap a decent battery, camera, and VTX to would be the 3” class.

>>1701699
Russian here, >>1701154 is just gibberish.
I buy most of my things from aliexpress or ebay, it takes about two weeks to arrive. If I want something quality or immediately, I go to hobby shops. Chain shops only have DJI and shitty clone quads nowadays, but look for smaller RC stores in your city to find the good stuff.
A solid option if you are in the EU is German webshops and amazon.de. They usually have cheap shipping within the EU, and Germany is awash with hobby shops.

>>1701740
Never charge LiPos unattended, regardless of whether you're using a parallel board or not.

hes asking 300. sounds like he would take less. should i?

>>1702475
What material?
It looks like foam board?
If it is, then I would say no.

>>1702475
seems really ghetto for 300 bucks

>>1702573
>>1702478
yeah. might as well build something better myself, especially since there is no powerplant

>>1702475
Hell no

>>1702582
What I would do is get dollar store foamboard, and just DIY laminating it. Cut out the shape you want, then cut out the same shape but double the thickness of the foam smaller. Make each part, then slather glue on the inside of the larger part and stick the smaller part inside. This way when the part tries to bend, the outer layer has to fight against the glue gripping the inner foam. It's the same principle as plywood. I used it when I made floats for my seaplane/winter Cessna conversion, those things are crazy sturdy and since they're foam still really light.

I don't think you can do "bend over" wings this way though, I imagine you'd need to make spars, then the inner layer, then the outer layer on top.

Okay, so after building a quad, I want to build a plane with a wingspan of around ~0.5m-0.8m.

I just came back from the shopping mall where I tried looking for some foam board. Best I could find was some foam sandwiched between carton, which looked very stiff and after playing around with it for a while, it seemed that it would break when trying to form the airfoil, rather than bend in shape.

So then I thought, why not print the damn plane? And I found this design which I really like and seems rather polished:

https://www.thingiverse.com/thing:3204128

Question is, is there a way to reinforce the plane so it won't break so easily?

TL;DR HOW THE FUCK do you make a plane without using foam boards.

>>1702813
the old fashioned way
https://www.flitetest.com/articles/a-step-by-step-guide-for-building-balsa-models

>>1702813
Finding a styrofoam block of those dimensions shouldn't be too hard, it's common trash. If hot wire cutting is too fancy for you you can eyeball the airfoil with a knife like the nigger you are.
I wouldn't recommend balsa for a beginner; it's more expensive, time consuming, hard to repair, and easy to fuck it up.

>>1702837
>fl*tetest
ew

>>1702859
>hating on the most popular and easily one of the best sources for simple plane models because lul mainstream

You're the dude that worships Steele and thinks KISS is the GOAT arent you?

>>1703075
>IT'S POPULAR SO IT'S GOOD

>>1703077
Issue with your sperg logic is Flitetests models actually are good. Obviously they arent meant to holding onto for years, theyre made of foamboard so you can get into flying cheap and repair it easily.

Can you even walk with the number of spare chromosomes you have?

I'm inclined to agree. My first plane was a FliteTest Versa-Wing that I put a quad motor and prop on as a pusher, and I still fly that thing sometimes. KISS still applies to it, I would argue, there are no superfluous parts on it.

I've got a bunch of 6x4 propellers, both clockwise and counterclockwise. I want to build a plane. What size and kv motor should I combine these propellers with if I want to make a twin engine foam thing?

Why aren't all servos 11.1V?
having to convert 3s to something like 8V is a pain in the ass
at the very least high torque servos ought to match 3s straight out of the box but no, finding 11.1V servos is very hard, voltage converters at those amps quickly become annoyingly heavy.

>>1703077
That not how you 4chan, Amir.

>>1703081
>Can you even walk with the number of spare chromosomes you have?
Says the retard that needs to be spoonfed on how to cut overpriced foam.

>>1703406
Why are you trying to power servos directly from a battery? You should be running them from a receiver that is getting 5V from the ESC.

>>1703436
dude i'm running a 60kg servo, i'm kinda thinking that receivers aren't rated for those amps

>>1703418
>a dollar a sheet is overpriced

Anyone who buys Kiss gear is just a fanboy loyalist. Betaflight is flying better than kiss with RPM filters

>>1703555
He probably means the FliteTest "special formula" foam that is supposedly water resistant.
I've never had issues with water and the foam I can get locally, so their ugly brown foam probably is actually overpriced.

>>1703804
Okay, guess I misunderstood. I just use the dollar tree foam.

>>1703453

What the actual fuck are you flying with 60kg servos? I've put lower load servos into a godamn jet trainer - a REAL one.

Battlebots look fun to make. It would certainly be a good experience making some and battling some. I wonder what the constraints are, somebody could just come in with a titanium robot and mess everything up. lol Certainly there are people whose personalities you don't like. This is a method of doing things in a scenario where there is somebody's personality you don't like in action based on it in a reasonable manner. Beating up their robot with your robot, no general strong hurt feelings in the process. I personally think it's a good venue for this process. Those who don't try this should be going for it, what's wrong with the idea? lol

>>1705181
My airplane is upside down and has wheels on it's top

>>1705189
you do know that steel is actually harder than titanium

>>1705189
https://battlebots.com/wp-content/uploads/2019/02/BattleBots-Design-Rules.Rev-2019.0.pdf
I literally just googled "battlebots rules".

>>1703418
>spoonfed how to cut foam
Post pics of your 100% DIY planes then anon, I wanna see your original drafts, the process, build logs, flight vids.

No? Thought not, shut the fuck up you dense little knuckle dragger. Go back to your inferior KISS builds.

>>1705503
looks like i hit a nerve

>>1705614
I dont even fly planes yet brotato. Simply calling you out, talking shit about a trusted source for planes when you dont know fuck all.

>>1705615
>I dont even fly planes yet brotato
Yeah i'm sure you're an authority on the subject.

>>1705619
Im not, but compared to both of us Flitetest is. Stop shitting on crap you know nothing about, like I said go back to your trash KISS quads.

>>1705621
Personal attacks and a textbook appeal to authority and you even admit yourself you know little about the subject.
wew lad.

Hey guys, thinking of building a ROV submarine with drone parts.

Two motors in the back thrusting forward, one motor at the nose to push down and dive (thank you anon in other thread for PWM instructions). Batteries and weights in the rear of the vessel. ABS Schedule 40 pipe, ABS glue and also caulking gunk. ECS board is connected to a receiver on the surface through a 200ft Ethernet cable (soldered both ends). FPV also looking out through plexiglass, also connected up through the Ethernet. Small stabilizers too so I don't end up upside down.

Any ideas or thoughts?

My buddy found a quad out in the woods about 5 years back, tried to find the guy who owned it but couldn't so its been sitting in his garage for years. He gave it to me, and Im wondering if I can cannibalize this to make one or multiple planes, cause I think one motor is fried and the chassis is wrecked. The motors are SunnySky X2122-13 980kv, what I think are Cheerson CX-20 ESCs, and a FrSky X8R receiver. Is any of this useful/worth desoldering or should I just get all new parts from the hobby store?

>>1705969
If possible, try to not use mechanically moving parts like stabilizers, the waterproofing of rotating axles is a pain in the ass. Of course you could place the stab. servos outside and just waterproof the servos. But I believe it would be simpler to just use 4 motors (2 back, 2 on front on both sides of hull so you get aileron and pitch.)

>>1701740
Just charge at proper amps during the day it only takes around 45 min to an hour. Lipo fires happen don't leave it to chance

>>1701811
The only way I've been able to fly outside with a tiny whoop reliably is with brushless motors on 2s. If there's any wind brushed motors are going to struggle unless they are geared 8520s and they still barely do the job. I would suggest getting something like the mobula 7 and adding the 200mw vtx they make for it along with an external rx. I got really lucky when I bought the esc for pic related because I got the fc with it for 13$ total. Then I put full range rx and a 600mw vtx on it and it weighs about 84g with a battery on a 100mm frame. It has about the same range as my 5" quads and it's significantly faster then a mobula 7 for reference

>>1702582
>300$ for a shitty foam model with no powertrain

Yikes

>>1703418
>what is the dollar store
>what is a well drafted plane model designed by experienced pilots

Stop being such a god damn faggot holy shit

>>1706282
>experienced pilots
Go look at their videos. Josh is very good but the others are mediocre at best.

There isn't necessarily anything wrong with that. Most of what the non-Josh pilots do is chase a plane with a camera quad, or fly smaller planes in the background of whatever big deal Josh is flying, which is a very different skillset and which they are genuinely good at, and when they do actually fly on camera dramatic flights and crashes are actually something that brings in the casual audience they want. A superb pilot flying a two-metre Ju88 scale with perfect takeoff, circling and landing with a voiceover explaining in excruciating detail both the real aircraft and the process of making and flying the model brings in a tiny fraction of the views that a mediocre pilot gets by crashing one of their foam gremlins into the ground at full tilt while that other guy shouts BROOO into the mics. Just compare the number of subs FT has with the number of subs those ultra-autistic sixty year old Germans have combined.

Thing is though, a lot of their models aren't designed by Josh. The ones he does have a hand in I would call straight up good models, ones like the big-ass Kraken flying wing, and I would say the same goes for Peter Sripol, who while a mediocre pilot does have a lot of talent in the design and making part of the hobby. Even in the old days when they did that weird tricopter thing, the Swede they brought in was so autistic that things eventually turned out alright anyway. But when their resident camera quad operator comes in and says "This is a replica of the Porco Rosso flying boat I made, plans on our store", you should be extremely wary. In this particular example it does look very much like the one in the anime, but at that point your airframe is designed by Miyazaki, whose process is equal parts looking at grainy photos in museums and rule of cool.

>>1706086
If the motors and esc's work, those are worth scavenging.

>>1706291
Motors actually survived the crash, but Im gonna need to do some research and work to test the ESCs. I think the controller is also from a Cheerson CX-20, but whatever it is it still lives, so Ill need to research how to set that up for a plane instead of a quad. It had a big mushroom shaped antenna coming out of it that I think is a GPS or compass, so thats the next investigation.

>>1706184
Yea the idea would be to move the servos to the outside. The brushless motors are also on the outside, so I'll just have one hole carrying cable inside the vessel.

How do I stop it from rolling upside down underwater?

>>1706290
Being a good pilot and being experienced aren't the same thing where's your model catalog dipshit

>>1706423
Use whatever gyro/flight controller for "aileron" control. Or just drive full manual, whatever.

>>1706282
>what is a well drafted plane model designed by experienced pilots
Because being a good pilot automatically makes you an aeronautical engineer, right?

>>1706290
>resident camera quad operator comes in and says "This is a replica of the Porco Rosso flying boat I made, plans on our store
That's not a quad operator, and Josh made the airframe. The guy you're thinking about is the director, who's currently learning to fly. All he did with that design was glue a motor and some servos to it for the video. The final model they put up on the store looks pretty different from what they were flying in the video (it's the one they use when they actually do water landings like a week later), so probably Josh or one of the others (Alex?) overhauled the thing when they made the official plans. Prominent changes are that the shoulder wing becomes a parasol wing, the engine pod looks like a complete redesign, the engine is now a pusher rather than a tractor, and the whole thing looks slightly longer.

>>1688899
How cheaply can a person build an rc sailboat? Some guy at the lake let me pilot one for a little bit, and I was amazed how quickly it began to make sense!

Ive already got servos, xciever, xmitter, but storebought hull kits are crazy expensive. Is anyone doing affordable homebrew sailing hulls?

>>1706550
https://youtu.be/Di4KmLwCqrQ

>>1706550
You can carve the hull out of insulation foam from hardware store. Then just add a mast, sail made out of plastic shopping bag and something heavy for the bottom (can't recall what it's called in english and can't bother checking because phoneposting.) Total cost would be anything from 0-20$ depending on what you can source from your garage.

>>1706550
The most expensive part is going to be the keel. You can buy one for about fifty bucks online, but if you have a decent workshop you can get away cheaply casting one from lead on your own. You'd make a keel out of foam or 3D print one in PLA, then bury it in sand in a bucket so that only the very top sticks out, then you'd pour molten lead on it. The foam or plastic burns away when it comes in contact with the lead and you get a pretty good cast with very little effort. If you're clever you put a bolt on a screw and dip it in just as you're done pouring, so you have a perfect way to mount it on the boat later. Remember to paint it once you're done, you don't want to leach toxins into your pond and your skin.

The rest of the boat would be super simple to make. You need a rudder and at minimum two servos, one for the sail and one for the rudder. The hull can be made out of basically anything that floats, and the sails from pretty much any cloth you want to.

Are there any good guides for rc cars with fpv

>>1706904
What do you need a guide for? You just stick a camera & VTX on it.

That said, I've tried it & it kinda sucked for me. Because you're so close to the ground, you can't see far enough in front of you to drive at any speed, especially on uneven ground.

I finally found some time to get back to work on this. The wing is now pretty much finished (I'll do something later on for landing gear, I'm slightly interested in making something retractable, and I'll also add some sort of fairing around the servos and behind the motor, mostly out of aesthetic consideration.), so I've focused on the fuselage. I'll add half millimetre or so recessed squares to look like glass panes, and also do something about a landing gear later on. I plan to split the front of the fuselage in two just ahead of where it attaches to the wing (two M4 bolts, it should be plenty sturdy), so that the nose cone can be pulled off to access the electronics. I'll probably add little sockets for magnets, because I saw that on a helicopter last week and it was awesome. I also figure that the nose is the part most likely to break (this will be printed plastic so if I outright crash the whole thing is probably going to turn into splinters, but at least if I manage to do a noseplant while landing or something), having it be easy to replace is nice.

Anyway, for ailerons I decided to go with one wide piece per wing, with their own servos. This way I can do flaperons, which I figure might be useful since printed planes are so heavy.

I realise I should probably be spending less time on making this thing look good and more on getting it done so I can start printing and figuring out what actually works and not, but once I got to the cockpit I sort of lost track of time and got carried away. It doesn't look great in the screenshot, but when I swing it around in 3D it actually looks very good.

>>1706918
https://www.youtube.com/watch?v=1pl5b9G4c4I
It might depend on your camera (FOV and shit), this looks alright.

>>1707306
Yeah that's kinda my point, you're limited to trundling along very slow like that. Fine if you want the whole 'exploration' vibe, but not if you want to open up & zoom zoom.

>>1707087
bruh can u make that nose cone design elliptical
thanks

>>1707417
I don't understand what you mean? The nose is deliberately a bit squished on the bottom, it's how this type of plane actually looks irl.

>>1707313
That's the opposite of what I'm seeing though. If this were a real car, he has a superb view of the outside. He's driving slowly because he's in a forest and that's what you're supposed to do on that type of ground, if he was on a track or a parking lot he could go very fast and still see well.

If you want better visibility, you could mount the camera on the roof instead of inside the cabin, or you could even get a dowel and make a "selfie stick" to mount the camera above and behind the car, so it looks like one of those third person video games.

>>1707440
I'm just telling you my experience from actually doing it IRL. And mounting the camera outside just means it's going to break pretty quickly, unless you go all out & design/print some sort of pod for it.

Don't let me put you off trying it, I'm just saying I was also excited about the prospect but soon found it to be lacking. I don't even have a camera on mine anymore, I ended up never using it.

>>1707452
Oh, I'm not that guy. I've never driven a car FPV. I'm just saying that what I've seen on car FPV setups seems workable to me. Especially the "selfie stick" method.
Yeah, it's a bigger risk to the camera, but honestly they're not that expensive and the ones that are expensive can often actually take a few hits anyway. We put these cameras on quads and planes, and when those crash the camera is way more likely to get banged up simply because of the greater speeds involved.

>>1707436
yea but is that shape a revolved ellipse?

>>1707464
I doubt it. It's an extruded 15mm dome.

>>1707457
>We put these cameras on quads and planes, and when those crash the camera is way more likely to get banged up

Except it's not, because on a quad the camera is always mounted inside the frame, between the standoffs, etc. If I had a camera mounted to the outside of my car & tumbled it at 60mph I'd spend the next 20 minutes finding the camera.

>>1707467
how is that an extrusion lol?

>>1707488
It pokes out?
I'm self-taught, obviously I don't know the proper ways to do things or many of the terms. Am I doing something wrong with this nose? It looks very similar to the noses on the pictures I use as a reference.

>>1707552
Make it so that on the nose cone every line from the tip to the base is a fourth of an ellipse

>>1707552
It's fine, ignore the idiot. You're spending a lot of time on this before knowing if or how it flies. If you can, you should print a simplified version, test it then make a more detailed version and include any changes to the airframe that you need. I know designing is fun, but flying is even better.

>>1707578
I know, I know! I actually did the windows while I was bored at work, didn't really have the time to sit down for a full session which I imagine the tail will take, so I figured I'll slap together some quick windows for now. They don't look great, but they look good enough that I don't think I'll need to change my method for making them, just the actual geometry. Next step is absolutely going to be the tail, I've already begun printing the wings. Once I have the tail I can model whatever method I'll use to stitch the fuselage parts together, and then the whole thing will be ready to print. I won't do landing gear or anything else until I have a model that bolts together well, then I'll check the centre of gravity with motors and servos bolted on, figure out where the battery should go. Then I'll remove all that stuff and tape in some placeholder weights, and just try tossing it around as a glider to see how it handles.
To be honest I'm already a bit bored with this one, I have a much more exciting idea for an enormous flying wing. I figure I'll get this in the air, and take it as a learning experience. If nothing else I'll paint it up and hang it in my workshop as a displaypiece. I've already figured out better methods for a bunch of the things I did at the beginning that I really want to apply, but that would require a major overhaul of the wing centre, which means an overhaul of basically everything else, and it's just too much work.
>>1707574
Oh, okay. I could do that, but do you mind explaining why I should? The nose cone I have now looks alright to me.

>>1707606
because of see pic related
are you saying that you aren't willing to autistically go after the lowest drag possible?

>>1707613
those are trailing edges

>>1707613
I won't need a Von Karman nosecone, I don't plan for this thing to go transonic.

>>1707620
never mind i was wrong.

I got a Parrot Drone without the charger. If I cut open the battery case, can I wire out the battery like the bottom photo - then charge it with my Phantom 1 balance charger?

>>1707623
that picture is some kind of sum up for all speeds
elliptical is best for subsonic flow

>>1707762
Easier/safer just to put the correct discharge connector on a different battery.

>>1688899
Is a dihedral delta wing a good idea? Or should I make a flat delta wing with wing tips for stability?

>>1707946
Continuous increase of wing angle or nothing, bitch

>>1707889
It doesn't mention any speeds; in supersonic flow conical is vastly superior to elliptical.
It's a shit picture desu.

>>1708117
it's just a generalisation
conical a shit

>>1708240
>it's just a generalisation
That's not how it works.

Finally got a driving license & a car, so now I can more easily take bulkier kit out to fly :)

Just got a mavic pro - I installed the app, and it's forcing an update on me. I detached my device, but when I start up the controller, it's still demanding a firmware upgrade.

attempted to reset RC to factory by7 pressing 4 buttons, failed. Attempted to connect RC to DJI assistant via usb, failed.

Do I just give in and accept the firmware update?

>>1709020
It's a DJI, you ain't getting any other option.

Have fun the day the senate decides that hobby drones should be limited to 25g with a 10m flight ceiling, and DJI forces a firmware update that bricks everything.

>>1709046
used Dumbldore, activated drone, unlocked drone. Now I'm on firmware 01.03.400, which I think is pretty cool. I wonder if it's inherently more valuable because of that.

What freaks me out is I am getting these "Class B" airspace warnings. Looked that up, didn't realize how serious this shit is now. Have to notify towers before I fly?! I just want to use it to 4k spy on the woman down the street who sunbathes nude all the time. Is that too much to ask?

I didn't realize all the crazy stuff these drones can do either. face recognition + auto follow? You know that stuff was definitely developed through military channels a decade ago or whatever. And I love that we've got these chinese spy drones were fucking flying everywhere lol.

>>1709020
>Do I just give in and accept the firmware update?

Why would you want to refuse it? Updates include all sorts of stability/bug fixes.

If you're just wanting to use your drone in dumb irresponsible situations, then google that yourself.

>>1709177
This shit is why we hate DJI owners. If you're actually in Class B airspace, you should check the B4UFly map and see what the height limit is. You're not supposed to call the tower anymore, you should use LAANC to get permission to fly. Or just go somewhere that's Class G and fuck off.

>>1709206
>Muh airspace

>>1709206
>asking the government for permission. I bet you can't wait for them to lockdown firmware and send whatever stl's you're printing to a safety agency to make sure you're not doing anything bad.

>>1709206
You do realise that "Class B" is basically everywhere within two hours drive of civilisation, right?

>>1709271
Not at ground level it's not.

>>1709020
Its like an Apple product.

Any of you guys ever done anything from scratch, as in building a drone with parts (not that rare by the looks of things here), but also coding the software to control the thing?

>>1709436
A class of 20 of us built x2 of these an odd 10 years ago in uni. Don't think I have a photo of the second one.

>>1709436
Writing flight control software for a multirotor from scratch is a fairly substantial undertaking & doesn't really make sense unless you just want to do it to prove a point. Makes far more sense to use or fork one of the existing open source solutions (Arducopter, Betaflight, etc.).

>>1709457
The issue (or rather: given) is that you will have to have an ArduPilot/Copter module too. And I'd, realistically, like to do everything from scratch.

How do increase the range of a camera? Will increasing the input voltage on the vtx from 9v to 18v work?

>>1709451
what was the objective?

>>1709545
>what was the objective?
Design the aircraft from the ground up to carry a 1 litre payload of water, the drop it in a target area while in flight. I believe this one pictured had a trap door that released the water while the other one had a water balloon which was punctured by a servo in flight.

>>1709496

Cameras dont have a range the VTX does. And no just giving it more voltage will not give more output power. You need to buy a VTX that has power setting like 25mw, 200,400, 800 ect.

>>1696866
unironically EV200D
it doesn't have the best modules
it doesn't have the best firmware
it doesn't have the best screen color depth
it has antennas out the ass
3 patches, 1 omni makes for really, really great reception

>>1709496
The transmitter has an internal regulator that transforms excess voltage into heat. Increasing the Vin will just make your transmitter hotter. You'll want to either get a transmitter with more mws, or better antennas. If you have a whip antenna, switch to a cloverleaf. Circular polarisation gives you a bit less disruption from signal bounce. You can also get a receiver with diversity, ie one omni antenna and one directional antenna. Then as long as you face roughly in the direction of the transmitter, you will have superb range.

>>1709656
>>1696866
I would rather go with sky02's. The quadiversity is mostly a meme unless you are absolutely limited to using 25mW. Skyzones are also more compact, have better firmware, and better color depth.
Otoh, if you have a bigger budget, the sky03O's are absolutely the best looking analog goggles I've tried. It's not digital, but the clarity and vividness is still better than you could imagine would be possible with analog.

>>1709488
You can build Ardupilot to run on pretty much any STM32 based platform your heart desires, but again, why reinvent the wheel when there are so many tried & tested options out there (including open source ones) which will invariably be better than anything you can come up with?

I understand wanting to do stuff yourself from scratch, but I'd rather build new functionality on top of an existing platform, rather than re-build the platform itself just for the sake of it.

>>1708736
Nice I just got a motorcycle endorsement added to my licence so i can finally get out to some harder to reach places and mounted a gopro on my quad now that I'm getting better at flying smoothly

>>1710382
What I don't recommend is trying to bring your flying wing on your motorbike. I strapped it onto my backpack so the wing was vertical, but halfway there it somehow slipped down to horizontal. I immediately steered to the side to stop and fix it, but it snapped in the middle despite the carbon fibre tape. Left half got run over by a lorry, right half ended up in a ditch.