/diy/ - Do It Yourself

>>2806684
>>2806676
You're right, I misunderstood because I skimmed the original post too quickly.
This is a dangerous idea because of the backfeed problem and I don't have an elegant solution.
Basically you need both lines to disconnect if the sensed voltage is a under 240V, and also way to bypass that protection when you're first plugging both cords in, so maybe your idea about relays and minimum voltages is on the right track.
Good luck

>>2806692
>I am an open-source extremist

Post fedora

I am an open-source extremist. I am also NOT interested in tinkering with 3D printers as a hobby. I'm looking with interest at Voron printers.
If I build one, my fear is that I will be monkeying with it forever. I'm prepared to do some extensive initial set-up, but after that I don't want to be constantly tuning and optimizing.
If Voron isn't the way, is there another open-source project that I should be looking into?

>>2806658
>moving to the US from Europe soon.
Which tiny country are you from?

>>2806570
> no watts
Always get the TO-3 versions of everything.
Are you making a toy?

Are battery powered lawnmowers better than corded ones? I had a corded mower and it was pretty weak. Obviously it's better to not be limited by a cord but ignoring that issue, can you get better instantaneous power using batteries over corded?

It would be less bad if you just cut the end off your extension cord and landed it in the panel on a 2 pole breaker. Involves building electrical but doesn’t require any changes per se. it would be best if your employer ponied up for a ev charger. It’s tax deductible.

>>2806579
Interesting timing as I read your message and a new video popped up on YT about how to do it without soldering or spot welding.
https://www.youtube.com/watch?v=LR6fnFqnGLU

>>2805506
if you're building a kit with a PCB then you might not need a micro at all although I'm not sure about Lily58. Iris has an integrated controller at least if that's easier for you. Otherwise the Arduino Pro Micro is pretty much standard I think.

>>2806679
because the two different lines are just male extension cord ends. the coil connects the hot of one male end directly to the other hot on the other male end. the charger would also do this, but with the relay it would now disconnect the charger in theory.

one cord goes in one outlet, the other cord goes in another outlet in a different room. thanks to split phase and luck, they combine to make 240v since they eventually end up all the way out to the utility pole on two different sides of the transformer.

>>2806658
The US is a huge place. When I lived in the middle of Atlanta, the electricity was pretty unreliable. When I lived in rural Alabama, the only time it went out was if there had been an ice storm. It just depends on the distribution system in an area and how prone it is to damage. California's electricity is becoming unreliable. People make a big deal out of the winter storm in Texas that took them out for a while but that's not a common event like what's starting to happen in California, but even there it depends on what part of the state you're in.
Atlanta apparently is prone to issues because the local "grid" is actually hub and spoke, with very little redundancy. If some moron runs into the wrong pole a couple miles away, it can take out your area's power instead of being localized just to that street.
That said, I keep my computers on a UPS but everything else is raw outlet power delivered from the electric utility.

>>2806658
I have never used a UPS once in my life besides a normal surge bar you can get for 5 dollars. I have never had a piece of equipment burn out from power issues, and I have only ever had power issues during ice storms or hurricanes. It depends on where you live I guess? UPS are nice because if you plug your modem into it, and then plug your PC in, your internet will still work as long as the cable lines aren't damaged like the power.

also don't buy a new UPS you tard. Businesses throw them out all the time and they most often just need a battery. Look at facebook marketplace or craigslist.

>>2806679
probably male ends mounted to the box and female plugs connected to the cords going to the separate 120 lines you're drawing from. ugly but does what you want. actually having a box with these ugly male plugs sticking out of it and then a hardwired line out the other side for the combined 220v would probably eliminate the need for the contactor, but it would allow the 220v load to be fed 120v from the 1 remaining line if one comes out from that plug setup.

>>2806660
That's a different anon. My 5" build weighs under 200 grams, not 600 and yes it flies much better

>>2806645
why are you worried about the coil being live, the contactor (and its live terminals/coil terminals) should be in a sealed electrical box with leads to two plugs or something to disconnect the two 120 lines mounted to the box. even if it was hardwired thru/past the box without the plugs you always need to have contactors contained the same way fuses/circuit breakers are

>>2806091

>>2806658
>i've been told that the US is notorious for unstable electricity.
[citation needed]

what other bullshit have you been told.

>>2806655
this will not work, because 1 is disconnected from power, the power of 2 will go through the charger and backfeed the relay, keeping it on.

if the relay is powered by the full 240v, if one is lost, it will backfeed only 120v, which is hopefully enough to disconnect it.

I'm not sure what the minimum voltage to maintain the relay that is already latched is.

>>2806403
It is and isn't.
Really depends on what you're doing.
In general they're a thing of convenience as >>2806567 says.
You're paying a premium for convenience.

I do my 3 acres with an ego mower and 2 large battery packs.
I do not have the time, space or care to bother working on a gas mower, nor do I feel like fetching gas or managing it's storage.
I can charge one pack while the other is being used for endless running.
I get an hour of run time on a charge at most.

I can trim under my entire electric fence line on one charge with the trimmer too on the smaller pack.

Gas devices are more powerful on average, much cheaper and definitely more open to DIY repair though.
My EGO mower, however, can mince woody bullshit like 3 foot nettles with ease so it's no issue to me.
Also, it has headlights for mowing in dusk to avoid heat

The real scam is electric riding mowers lmao.
Look at how many batteries you need for the EGO riding mower.
And the thing will still run out and be stranded after covering less than half the acreage of an equivalent gas rider at many times the price.
"refilling" is slower on the riding mower too as you'll be swapping out like 6 batteries, then putting the spent ones away.

>>2806571
It’s of type ‘led’ which we assume is a volatile memory mapped and auto-incrementing register of some kind…. to make it work.

>>2806074
you can't stop me
i will stay in Germany, boost your prices, groom your women and steal your car and you literally can't do shit, because you are spineless cuck and all you can do is seethe on 4chan
get use to it, loser

>>2806665
Nothing wrong with multi-dimensional 10× overkill.
Or, you could probably get away with one of those microwave oven synchronous turntable motors.
Those are geared way down, so they turn slowly and smoothly.

>>2799309
A walled-off area would forever cramp the space.

With the curtain drawn, it gives a much better feeling of overall contiguous space

>>2797072
Imagine being the guy on the toilet at the far end, when other people are on the other toilets.

You either have to crawl over shitting-in-progress people, or wait them to finish and hope no-one else comes in to take their place.

Also, I see no toilet paper in this image.

ALSO, what the hell is up with the floor? Ankle deep blood?