/diy/ - Do It Yourself

Posted in the last thread
>>781873

I'm trying to put some weather stripping on my doors but the packet doesn't have instructions about which way to face it/which surface to put it on for the best seal.

>>782303
Interior or exterior door? Normally it should be on the door stops(moulding on the door jam.....thats stops the door) sticky side of weather stripping on the door frame if thats what you picked up.if its an exterior door, a lot of the time the stops will have a channel in them slipped in. Usually all you'll need in a putty knife to slip this thin. Also cut the corners a little past 45 degrees to get adequate coverage on your inside corners

>>782385
Exterior door, there isn't a channel for them to slip in but at least you explained that they go in the door stop not against the doorframe.

I want to grow grass in certain places of my lawn without tearing everything apart and doing over.

Do I just need seeds, or is it unavoidable?

>>782492
I'm not sure what you mean, is there stuff growing there already? If so you're going to need to tear it out, grass isn't just going to push everything out of the way.

I've got an electric trimmer/shaver with multiple attachments. This attachment recently got knocked over and the cleaning guard and that blade/cylinder part came off.

I thought I put it all back together properly but it hasn't been working properly, it makes an unusual sound when turned on and doesn't give a proper shave.
Anyone got any idea?

What's a good water proofer for leather boots?

>>782601
Shoe polish.

>>782601
Mink oil. Shoe polish doesn't do shit but make them shiny.

Clean with saddle soap, put mink oil and buff, then shoe polish.

Can I use this for electrolysis? Got it for free.

Anyone have any experience repairing iDongles and phones?

any tips for drilling perfectly straight holes? like the hole is perfectly 90 degrees perpendicular to the surface

>>782833
i should have also said with a handheld drill, not having a press available

>>782833
Drill press
Or steady hand + bubble level

>>782833
Use a starter block. Try like 10 times in a piece of scrap lumber, pick the one that's straightest and cut it free. Drill holes starting with that. using a plumb line and checking from the side as well as the top/front will help too.

>>782811
iFixit.com

Will show you how horrible the experience can be.

anyone know where i can get 2pin flat ribbon cables? or as few pins as possible, and maybe a socket to fit it with (zif or otherwise)? have a project involving some battery power but cable needs to be flat and folded with quick removal/plugging. Doesn't have to be a long ribbon, maybe 1/2 a foot or so.

>>782872
Yeah, I looked at a few of them. But replacing a screen shouldn't be that hard right??

>>782894
Salvage IDE/floppy ribbon cables from an old computer?

>>782917
shit forgot about those things!
ok, any flat or near flat sockets out there? I could probably fumble together something with tape but an actual zif-like socket i can solder some wires to would be a lot nicer.

>>782508
Trimmers like that often require lubrication on the internal bits. Might need to add some. Just a thought.

I am thinking of getting into "home recycling" of plastic (HDPE) for use in some of my craft projects.

I really need cheap heat resistant gloves to safely handle the plastic. Any recommendations on gloves?

I was going to wash and wax my car today because the world finally came out of the recent ice age.

When I opened the faucet water started blasting out behind the wall. After removing some insulation I found out that the pipe had burst.

What I dont understand is why it only leaks from that hole when the faucet is open.

I would ask Google but I have no idea how to word this.

>>783086
Might have left a hose attached or something so your frost-proof silcock couldn't frost-proof properly?

It could have broken somewhere in the 6"-30" section. When the valve is closed, there's no water there, or at least there shouldn't be and it can drain out and not freze, but if you have a hose stuck on there, water could have stayed in and frozen and burst in there... the connection to the supply can still be turned off like normal though.

>>783095
Oh, that makes perfect sense.

>>782942
Sata cables maybe?

I want to buy 3 12volt batteries, for making a led flashlight, a 100W led flaslight to be precise

how can I select my battery charger, and the dissipator for the led?

I was thinking of an old cpu dissipator, how do i connect the fan to the batteries?


http://www.batteryspace.com/SLA-Battery-Sealed-Lead-Acid-Battery-12V-4.5AH.aspx

http://www.ebay.com/itm/100W-White-High-Power-LED-Panel-9000LM-100-Watt-Lamp-Light-/141330192585?pt=LH_DefaultDomain_0&hash=item20e7ef98c9

Getting started in PCB design, pic related's part of my circuit, it's the power supply.
USV is 5v from usb, RAW is unstable input.
From what I can tell, when the EN pin on the regulator chip (MIC5219, http://www.micrel.com/_PDF/mic5219.pdf)) goes high it tuns on and lets electricity through.
Bottom pic is the reference design I'm working from, from an arduino, they tie EN to the input pins so it will always have power.

I'm wondering if I can put a momentary switch between the raw input and EN, then tie EN to the chips output, so by pushing the pin it'll hold itself open. Kinda like making a relay hold itself on.

Am I missing something utterly critical here?

I'll try answering the other questions in this thread if I can.

>>782303
Hello /diy/, simple question here.

Recently made some greensand for the first time for aluminium casting, and I can tell I got it way too fucking wet as it's sticking to my hand like no ones business.

Would cooking it in the oven to dry it out be a stupid idea?

also, I did a 1:9 by volume bentonite : play-sand mixture, was I right on the ratio, or should I adjust it?

Just as Jesus died for our sins, Bill is going to die for our stupidity.

>>783194
This is both brilliant and depressing.

>>783105
You want a 36v LA Battery charger, presuming your going to put the batteries in series and a heatsink that can dissipate 100 watts of heat.
I would just tap the fan onto one of 12v batteries, simple on off switch, Your going to want a current limiting resistor and to drop a couple of volts too.

>>782601
>>782620
>>782652

>Acquire good quality shoe polish
>Acquire 2 shoe brushes
>Dab brush 1 into polish, only need a little bit at a time
>Approximately 1 dab of polish per area
>Brush polish onto shoes
>Left side, Right side, back, tip, top/tongue
>Apply polish to both shoes/boots
>IMPORTANT BIT
>Leave to soak into the leather
>Leave 30 minutes
>Return, after a fine cup of tea
>Use brush 2 to buff/brush off polish
>Enjoy your shiny waterproof shoes/boots

Tips:
>No amount of polish will seal poor quality boots, check your stitching and for holes/tears
>No amount of polish will prevent water running down your leg into the boots, get gaters or tuck your trouser leg over them
>Top tip: Only brush polish on/off along one plane of motion. Back and forth or side to side, longer movements are better.
>No circular brushing. It'll fuck up the leather.

Question:

I want to build a little self powered robot that can move around on 4 wheels. Want to make it somewhat autonomous. Part of what I want to do with it will require it to be able to move around on its own and sense and avoid objects as it travels. Sort of like a roomba I suppose.
I have an idea of making it with an arduino so I can program it to search for specific objects, shapes or patterns. What kind of sensors should I start with for the basic object/barrier avoidance? Some kind of proximity sensor? It would need to be able to sense various materials like wood, glass or metal.
I know the identifying objects/shapes part will be more complicated so just for starters what are some options for object avoidance sensors?

>>783245
Antennas with a little switch behind em, like in those crawling bugs?

If I built a variable DC power supply that varied DC volts, how hard would it to add a component to vary DC amps?
does anyone have any resources on this?

>>783229
A 36 v charger so i charge them all at the same time, why do i need a current limitation? The batteries are for a 100 watts right? Also the 32 vs 36 c is significant enough?

>>782806
Anyone?

I also got this beauty, but it's not a standard size. What is the thingy called that I need, to fit a stone or disc with a larger diameter hole?

>>783407
the thing you need to attach a stone to that spindle is a grindstone reducing bushing (aka reduction bush), stones themselves typically have 1-1/4" holes.
but are you sure it's not a circular saw spindle?

>>783471
It came with a broken drill chuck on one end, not sure what they used the other end for.

>>782806
Does it put out voltage with no battery connected? If so probably yes. Some modern chargers require some residual voltage in a battery to start. Not sure what it all says on the label but it looks like it could be a multi stage charger.

>>783490
Can I just hook it up and put my el cheapo multimeter to it?

Text reads:
Left
>on/off - hook up battery, then turn on charger
Right
>mains voltage 220V
>battery voltage too low
>charging
>after-charging(?)
>charged

The "battery voltage too low" sounds like there is some form of safety in it. I wonder if I can bypass that.

>>783484
someone tried to use it as a lathe..

What happens if i get fiberglass in my hands? Am i going to die /diy/?

What can I use to clean dirt and grime off my plastic headlight lenses? When I google I just get polishing products, which remove a layer of plastic each time. And I know Windex destroys plastic over time.

>>783714
it itches like nettle stings.

>>783738
soap and water for regular dirt and bugs, white spirit or kerosene for tar.

>>783744
>it itches like nettle stings
And it will for a looooong time, it won't infect and work itself out like normal splinters and shit.

>>783744
So it's just itchy?
Are there any long term health effects?

>>783189
poke for answers

>>783746
Well, don't inhale it or get it in your eye or eat it or anything. Other than that, not really.

When making fiberglass prop weapons, like for cosplay, what is the final thickness of the prop's fiberglass body?

And how many sheets of fiberglass cloth is used?

>>783714

I've got free time again and I'm looking to make a helmet/mask that I can bang around, hit and stab without taking too much damage and that's weather resistant that's made out of easy to find materials that are easy to work with.

What would be the best materials to use to accomplish this? I've already made a mask out of masking tape that was quite strong but I've wondered if a thick duct tape would suit the job better? Ive also wondered if using sheets of aluminium foil in between duct tape layered together would make it stronger?

So:
-Masking tape + duct tape + al foil or
-Duct tape + al foil or
-Duct tape or
-something else? Different types of duct tape together?

>>784017
Leather.

>>784027
brb going to buy leather tape from the hardware store

Just doing some testing now I've found that aluminium layers have some better protection against slashing and soft stabs but if a stab is hard enough it just goes through like butter where duct tape at least softens and reduces the depth of stab by being soft and "catching" the blade

It seems like a thick combination of both may work

how to apply effects on gifs/webms like pic related? Is there a quick way to do it?

1/2

>>784061
2/2

>>783269

ok. like little feelers connected to a switch? i guess that would work.

>>784061
Something or other with Adobe in the title probably.

Was riding a bus on the way home when I found this thing next to me.Lucky day I guess. So how do I easily read/use this thing? From the looks of it looks like a china crap. But I'll just consider it as an "intro to calipers" XD

>>784433
This will get your started.

https://www.youtube.com/watch?v=RcvjB_dKy28

>>784061
>>784062
Google content aware scale

>>784433
>>784437
http://www.measuring-tools.biz/measuring-instruments/read-a-vernier-caliper.html
On the video you skipped how to read the vernier.
the 0 on the sliding jaw lines up with the measurement, the line that the vernier scale matches up to tells you the fraction of an inch or tenth of a millimeter without having to put the lines too close together to read.
It works by having the spacing be slightly different, eg the mm vernier lines are 1.1 mm apart, so if the 3's match up, that means you would ad 0.3 mm to the measurement. And the plastic crap like that is all machine made, so I'd trust the lines to be accurate. But not the line placement. so check to see if it's zero when the jaws are closed, and adjust for any inaccuracy because it'll be consistent. also check to see that there's no wiggle on it, because that'll make it much less accurate and is non-fixable. but yeah, pretty decent tool, easier to get measures of stuff than a tape measure and that's all you really need from it, probably.

Not sure if this should have its own thread, but I'm interested in making a retort kiln to make my own lump charcoal, was wondering if anyone here was familiar with doing so and could offer any helpful advice on how to go about doing it.

I want to put some lighting in my case, and I'd like to do it cheaply. I'm looking at getting http://www.amazon.com/dp/B00RLZRI7U/, and I want to know if stuff like this needs a special driver or could I just solder a molex adapter to it and call it good.

>>784844
Bump this one. I bought some of those LEDs for a place with my ex, now she's my ex and I still have the lights.

>>784844
No special driver needed just give it 12V

>friend of mine is a plumber
>takes the scrap copper home
>annually help him with the big pile that accumulates to a more manageable size to take to scrap yard
>would like to make this process easier
He's got the strength to use the sawzall in one hand and pipe in the other.. I do not so I've used a vice in the past and hunching over that sucks.

I saw this video just now and I was wondering if there was another way to just chop the pipe quickly with some other DIY tools like this?
>google brings up copper wire strippers

>>784861
thanks

>>784864
I fucking hate when plumbers do that...

I got my house re-did pluming wise. told them like 6 times, TO NOT TAKE THE COPPER.

what do they do when I'm not there to make them stop? TAKE THE FUCKING COPPER.

I paid for that fucking copper when I bought the house, I'm not just gonna give it away for free.. Assholes

/jewrant

Try loosening the screws on the plate the blades run across ,theyre not meant to be full torqoue

How do we clean out a shed? We have a two store shed that has tons of shit in it from when we moved. My grandmother's stuff, my mom's stuff, and my own stuff. It's a literal pit of shit (rat) and junk. How do I convince my grandmother to let us clean it out because it's "HER STUFF" because she's crazy. She makes the excuse of "why should we do anything because every time I want to do something no one else does." It has been seven years, and I'd love to be able to use the giant ass shed as a workshop but I can't because it's filled to the brim.

Seriously, how do I convince her?

>>784879
chuck out your stuff first. And only your stuff.
Get that done? Can ask your mother nicely, if the two of you could go through her stuff, clean that out a bit. Get that done? Then, and only then, can show your GM a shed filled with only her shit, maybe shame her into letting you clear that up a bit.

Maybe. Or she'll tell you to do one, her place and her stuff, etc. - as she has every right to. I guarantee, you have crap there as well, you first. Also guarantee, if its as big as you say? - nothing (and nobody) stopping ypu cleaning out a corner first, and using that. Basically, you jist being greedy bassa, wanting everything, all at once.

>>784864
Log splitter

>>784903

I could do that, yeah. I'll start getting my shit out of there and see where that goes.

>>784879
I know this is pretty fucking mean, but you could always get your grandmother declared mentally incompetent if she really is crazy, and then either you or your mother can have power of attorney and do what you want with all her stuff.

>>784875
You ever get your copper back?

>>784875
sorry to hear that
>>784906
interesting... 300 bucks and a 20 second cycle time hmmm, I'll keep looking around

I need a powersupply to replace some AA batteries. Now I know the voltage of an AA cell, but what current should I expect? All I found out was that it can varry depending on maunufacturer. But there has to be a minimum right?

>>785091
How long does it take the device to drain a pair of batteries under constant load? For example, if a pair of 1.5 amp hour batteries last 2 hours before dieing then the device draws .75 amp hours. In that case a 3 volt, .75 amp or greater power supply would do the job. I'd got to 1 amp or more just in case though.

>>785096
The truth is I don't know. It's a camera flash. Not realy easy to get a constant load.

>>785098
Its generally 1.5 volts per battery if they are in series. Just go to a local thrift store and find a power supply for something that has the right voltage and the most amps you can find.

>>785101
did you even read? I know the voltage.

>>785103
Great. You didn't tell US that fuckwit. So we have to guess at what you need. Just get a power supply that matches the voltage and get as many amps as you can. Fuck.

>>785125
>>785091
>Now I know the voltage of an AA cell
Seriously? is this /g/ or what?

This isn't going to be a fucking nigger rig. I'll order a power supply according to my needs and not the biggest one I can find.

Should I get a degree in business management before/while I pursue a blue collar career? So I could advance and possibly receive a position of management.

>>783714
It may, literally, never come out.

There's no enzyme that can break down glass, so if it goes in, and doesn't end up embedded in such a way as it'll try to come out again, it may end up in there forever.

Where is a good place to buy colored wiring for automotive use? also good place for plastic connectors, maybe a kid somewhere with male and female connectors, I don't need anything fancy. I need to re-do half of a motorcycle harness.. and I was gonna do everything with just a single roll of red wire, and black wire for any grounds.. but it might get confusing in the future as to what's what.

>>783714
Storytime:
I grabbed on to a fiberglass pole once that had been in the sun several years too long.
My hand was full of glass slivers.
I used a lot of tape to get rid of some of it.
Then I poured pvc glue all over my hand and let it dry over the course of a few hours, then peeled it off.

Maybe after all that, soak your hand in water+epsom salts?

Eventually the itch will go away.

Can I readily insert this bits in a regular 3-jaw chuck, like an ordinary twist bit, or would I still need an adaptor?

>>785322
It'll work fine. Just make sure you tighten it up correctly, as with anything you put in a drill..

Could anybody suggest a project for a loser with not much talent for anything?

I want to do something, instead of sitting on my ass all day.

>>785353
What interests you, what tools do you have available?

>>783714
You will get random reminders that God hates you throughout your life.

>>785322
They're better. hex bits let the three jaw chuck grab three sides, so they never slip like regular twist bits do. Means no bits getting stuck jammed at the bottom of the hole while you try to wiggle them off with pliers because the drill can't get a grip because you can't hold it steady and use both hands to tighten it down on the bit.

>>785091
>Rainbow batteries
>1,5v
Pick one

>>785406
I just took that image from wikipedia to visualize what I'm talking about. Never seen that brand IRL.

How to I make free energy?

How do I go about filling this up with slate chips? (or something similar). I assume you can't just dump them in there because of the weeds. The soil is like 10 inches deep

I've got a black ABS keyboard. Is there some permanent method by which I can make the shell beige like pic related?

>>785545
no.

>>785431
they make black landscaping cloth that will keep weeds from growing through, but let water drain. put a double layer of it down then cover it in chips...

if your not planning on growing anything near or downstream you could consider spraying it with spectricide before putting down the cloth....

tell mother nature to lay down, shut up, and behave her damnself..

I bought a refrigerator online after recommendation from my landlord, but when it arrived its much smaller than the picture makes it look, at least a foot shorter and 6 inches narrower than my old one. (pic related)
I should have checked the dimensions but I was in a rush.

They delivered it and removed the packaging and took it away so I can't return it unless it 'develops a fault'.

So my question is:
How do I disable a refrigerator such that they can't tell it was deliberate, and can't immediately identify and fix it?

I'm making armour, and I'm running out of cardboard to make models out of. I've been making ?? scale models (they're the size of my fist, generally), and hoped to make those bigger and transfer them to steel when I found a design I liked.

I'm wondering if there's some application out there that'll let me make models of them virtually. as in, draw templates, put them together, fold, hammer them maybe, sort of thing. There must be.

I've searched around, but I don't seem to get anything good.

How tall should your forge be compared to your or your anvil? I'd think you'd want it about the same size so you aren't doing a lot of lifting and movement with hot metal, but I'm just getting into smithing.

I've got an enormous catalpa tree growing in a corner between my garage and fence. It's almost two feet in diameter at waist height and there's about a foot gap between its base and my garage wall, which got shoved in by an enormous rock which was between the tree and wall, buckled, and is being repaired now.

The concrete slab foundation of the garage hasn't moved, but I assume this is not a distance where a root barrier, air gap, gravel fill, or other root growth mitigation technique is going to work, right? It's going to be a pretty big hassle to kill and remove this tree otherwise, since it's growing right through a powerline.

If I built a little forge on my backyard to melt down aluminum cans, would that be legal in California?

>>785885
>California

Breathing is almost illegal in California, and you want to build a forge? Good luck not getting taxed until are forced to sell every single possession that you own to afford it.

MFW

>>782502
Get soil test kit, nothing over $12, test.
Get either gypsum(response to too much salt/clay)
or whatever chemical to reduce or increase said resulting values.

IF EVERYTHING IS TOO LOW, then yep, replace that soil completely.

Otherwise, just lightly rake the area, poke a shit ton of holes in that area, metal spikes, add the chemicals, fertilizer, water, rake, grass seed, covering(either hay, artificial stuff, really threadbare blanket), water.

>>783269
Sonar sensors, can be had CHEAP, good for both detection of obstacles AND for simple sensing of objects. THE hard parts getting the robot to make sense of things and then do stuff with it.

>>783947
ONLY if it GETS IN YOUR BODY
ie EYES, scarring, cancer, blindness
BLOOD, shot kidneys,liver,DEATH
STOMACH, internal bleeding, blockages, not fun

>>785431
pull weeds, cheap weed barrier fabric, cut to fit/cover that shit, slate chip

>>785895
TFW

The town across the river is suing a couple of towns up river because of farming runoff and basically tired of spending a shitton more allegedly clean the water supply.

Solid advice though.

What is this?

>>785977
Multitool. Nail puller, hammer, pryin tool, knife.

>>785977
Its a tool to stab through a mans skull.
The hole lets the blood drain out.

Hello
Long time miniature figure sculptor first time caster.

I was looking into how to cast hollow parts in resin when someone told me that it would be a good idea to rather then try to cast hollow parts, make a soft core that can then be drilled/cleaned out of the final part to make it hollow.

My question is what would be a good material to use for such a purpose and what would be the best way to "suspend" it in the mold?
It has to be able to survive the casting process (resin curing, demolding) but be relatively easy to get out of the pieces.

>>786030
Try searching for "slush casting", "roto-casting" or "gravity casting" All more or less the same process.

Basically you fill a mold with a measured amount of resin and then spin/tumble/rotate the whole mold. Some processes spin then open a plug to dump extra material, some just use the right amount and a practiced hand. The multi-axis tumbling keeps the resin material spread on the inside of the mold, giving you a hollow shell.

>>786032
No, not what I was asking.
Also not even close to practical for non-industrial level use.
I am not running a factory and I do not have 500k to buy equipment for my hobby. That is why I asked about the method I mentioned in my original post. It is much easier and MUCH more cost effective then roto-casting.

>>785977
das 1a dem dare wachyamakalzits

>http://www.lowes.com/pd_10367-13040-10367_0__?productId=3110273
This is "fireclay" correct?

>>786030
>>786036
two things, 1 the most effective way I've seen it done is to make the cast in two pieces, such as warhammer parts, so the piece that's occupying the void can be pulled out and the mold reused.
I'm not super familiar with resin molding, but what i'd suggest looking for is a material that is carveable and dissolvable with a solvent that won't affect your resin.

>>786036
Check out lost wax casting. Its fairly cheap, fairly easy, results in high quality blanks and is basically a 1 time use thing anyway.

Hello, all.
Is doing pic related a good idea?
I mean the two voltage regulators in a row.
All the caps are 10uF

>>786214
>but what i'd suggest looking for is a material that is carveable and dissolvable with a solvent that won't affect your resin.
I guess you don't realize that that was my original question do you? I was asking if anyone knew of materials like that.
I guess I have to do this the hard way and test a fuck load of things.

>>786227
Lost wax casting normally relies on fucktons of heat and is not applicable in this particular situation.
I am not looking for different casting methods, I already researched casting methods and already found that the method I describe as the best for my application.
What I am asking is what inner mold material would fit my needs and what is the best way to suspend it in the mold.

Again, NOT ASKING HOW TO CAST! Asking about material to use for the inner mold

>>786351
no reason to do that
just connect the both regulators directly to J1
J1 does not exceed 7833's maximum voltage right?

>>786402
The thing is, which I forgot to mention, that the circuit will also have the option to be powered by USB. The USB vcc is connected to the 5V. I made the input of 7833 the 5V so that it receives power from the USB when the circuit is powered by USB, and from the 7805 when it's powered from J1

>>786404
>I made the input of 7833 the 5V so that it receives power from the USB
why not connect the usb power directly?

I'm trying to find like a rubber cone/Gasket thing to help these decanter toppers have a airtight seal. Pic is of the topper.

I checked McMaster Caar, couldn't find anything like this but I may have not been looking at the right spot.

Halp?

>>786406
Would a rubber o-ring do the job? You could try your local automotive or hardware store.

>>786405
This should make it a little clearer.

When J1 is connected to power (~7V) the parts of my circuit that need 5V will get the output of the first voltage regulator and the parts that need 3.3V will get the output of the second voltage regulator.

When USB is connected, the parts of my circuit that need 5V will get power directly from USB and the parts that need 3.3V will get power from the second voltage regulator.

What I'm asking is if it's a good idea to wire one voltage regulator after another or if it's a no-go.

>>786410
there is no reason you cant connect the regulators like that, what really worries me is that you are connecting USB to a 5V source. Even though USB is also 5V, a mismatch could create problems.

why does your circuit need 5V, will you not always connect the J1. Is it a battery and you don't want to use it?

>>785817
please respond

>>786410
okay, I get what you are trying to do, if you will not have j1 and usb connected at the same time, that circuit is fine

>>786411
>>786413
The USB and J1 will not be connected at the same time. I thought it was clear.

Thanks for your help. Appreciated

I'm making a bracket to factory mount some aftermarket tweeters in my jeep
what would be the best material for this? I don't have anything on hand really that is capable of doing this. since all it has to do is hold it in place I was thinking of cutting up some cheap plastic or thin wood, but I don't have either of those, just a bunch of really thick sheet aluminum and steel, and some thick ass plywood.
obviously if I had a 3D printer I'd just print them out and be done with it

>>786397
Sorry, what I meant was that that's the best advice I could give without knowing more about the resin you were using.
If you want me to give you a guess, probably some flavor of clay? make the shape and wait for it to dry for toughness, cast the resin around it, and then soak it to wash it out of the center.
From what I'm seeing the resin curing temperature wouldn't be enough to fire the clay?

And what I was suggesting was to narrow the search from things that were similar to cast but softer and easy to drill out, things that have different melting temperatures, to things that dissolve in a different material. Things tend to dissolve well with either water, alcohol, or mineral spirits.
Your question was about possible solutions, you didn't specify looking based on solvents, but on any applicable area.
Also, you'll need a hole somewhere in the mold to provide the support and to let the material be let out.

Another thing popped into mind, something else which might work for you is suspending a piece of foam with thread in the middle of the negative space and casting around it, the foam will trap air in the center, so the piece will be much lighter overall. Is there a reason it needs to be hollow, or just lighter/saving on material?

>>785815
anybody?

>>786493
The only thing I can think of is pack insulation around the back of it, leave the door open, and wait for it to melt open a copper weld in the piping. not even sure that would work, but itd look like a fault in the temp sensor and would be basically totaled. good luck with your mini arson anon.

I am probably just an idiot when it comes to starting fires, but how do I get a coal fire going for Blacksmithing? I've been trying for the last two and a half hours and I can get a little blaze going with some fire starter type wood and newspaper but it just fizzles out no matter what.

>>786519
get a good wood fire going and the coal should follow. as in 20lbs of softwood, not two ounces of wet straw. (the solution to not enough fire is MORE FIRE, who'da thunk?)
also if you've got coke rather than coal, it goes out as soon as the electric blower stops. so don't do that.

I'm trying to build a cooling station for my laptop. An ESC should be able to drive a 12V fan even if the "BEC Output" is 5V, right? The page doesn't have any other information regarding voltage: http://www.aliexpress.com/item/4pcs-lot-30A-SimonK-Prgramme-RC-Brushless-ESC-With-BEC-3A-For-Axis-Quadcopter-Multicopter-Wholesale/32225789649.html

>>786519
Grab one of these from harbor freight. It useful for all kinds of shit. Burn some weeds, melt tar and get hardwood aflame.

Make a wood fire first. Small twigs place coal on top after established. Also blacksmithing but with charcoal as coal hard to get around here.

Making my own charcoal in a 55 gallon drum last night my fuck neighbors called the police and fire department. I had a fire above the drum eating the smoke so they were all quite impressed and everything went better then expected.

Make a wood fire first. Small twigs place coal on top after established. Also blacksmithing but with charcoal as coal hard to get around here.

Making my own charcoal in a 55 gallon drum last night my fuck neighbors called the police and fire department. I had a fire above the drum eating the smoke so they were all quite impressed and everything went better then expected.

>>786827
Reminds me of this one time at my dad's buddy's house. They were throwing a huge BBQ and had an open pit and a couple smokers running. They live outside of town too. Asshole neighbors called fire department to bitch. The guy throwing it was a volunteer firefighter, the part was the fire chief's retirement party.

>>786922
>>786827
I have an empty acre next to my house that I used to melt metal on, neighbors called the cops to bitch. Their justification was "they didn't want the UV radiation from the metal to hurt their kid's eyes". Some shitty ordinance was put in place where now you can't melt large amounts of metal without a permit.

>>786925

You using an arc furnace for that or what?

>>786926
Oil burning. Technically hot material does put off UV light, but not nearly enough to damage someone's eyes at such a distance.

>>786809
Same guy here, I'll just try to go with simple DC fans so I don't have to worry about ESCs. But I've got another question.

Pic related is my laptop's entire cooling unit. Heatsinks lead from the GPU and CPU to some copper fins on the edge of the laptop, which the small centrifugal fan runs air over to cool. My idea is to place one fan below the laptop's fan to push air into it, and another fan to the left of the laptop to pull air out of the laptop. I'm looking at 40-60 cfm fans.

Would this even do anything, is there even a point? As you can see, the impeller's fins are very tightly grouped together. Would the fan just reject the extra air I'm trying to feed it and operate similarly to how it is now?

One other thing I could do is set up some fans to push air over the entire laptop, treating it as a heatsink, because the laptop does get fairly hot under stress. Would that be better?

I want to turn my old Samsung Galaxy S3 into a media/file server.

I'd like it to fetch files from a 4 TB external I have but also be plugged in/charging so it doesn't go die in 20 hours.

Any ideas? Haven't really tackled the problem, but figured I'd ask to see if anybody has any experience with this.

it seems these days that troubleshooting things like refrigerators, washing machines, cars, pretty much anything would be easier with some kind of maintenance manuals. stuff that has drawing of exploded assemblies, circuit diagrams, part specifications, etc. where can I find this kind of documentation?

>>786947
Nope. Having a fan blow into another fan would be useless. Better off cooling the whole unit and making sure it has good airflow all around. Or you could get a machine that was designed properly so this isn't a problem. That said, what was the last time you used some compressed air to blow the dust out of it?

>>787485
Same place everyone else does: by googling the make & model number and the words 'service manual'.

>>782303

This guy was a fucking balloon animal clown, why does everyone suck his cock and think hes a scientist and actually have an opiniion worth value?

>>787530
Hes got a B.S. in mechanical engineering from Cornell. Carl Sagan was one of his teachers. He worked for Boeing for many years too. Comedy was his hobby.

Einstein was a parent clerk and couldn't get the time of day from the establishment for years. Tesla suffered from a gambling addition as a young man and dropped out of higher ed to work as a draftsman. He was later an electrician for a telephone company. Edison started off selling candy and newspapers. His first real jobs was as a telegraph operator.

Who the fuck are you?

>>787531
#rekt

>>787531
>Tesla suffered from a gambling addition
he lived in the woods for a few years to dodge the draft.

>>787531
>From humble beginnings
So, you're saying theres still hope for me right?

Can I just pull out a tube from my amplifier, or do I have to desolder it?

>>787556
How the hell are we supposed to know? Is it in a socket or soldered to the board?

>>787557
i think its in a socket, but i've never worked with anything analog before. is the plastic bit below the glass bit a socket, or part of the tube?

>>787561
Take a picture, post it here. Don;t post it from your phone. Make sure its upright and not blurry as fuck. Use the macro setting on your camera if it has one.

how to clean up a previous mice infested attic? there are no mice living there any more but there is a lot of mice droppings on the drywall under the insulation.

>>787587
Get a good mask with filters and a shop vac. Eye protection wouldn't hurt either. Dust will be a motherfucker. Air the place out as much as you are able. Vacuum everything you can to get as much debris up as you can. Spray Lysol on anything durable, like wood. We're not talking soaking wet here but give it a good coating. Things like insulation really can't be cleaned. Either deal with it or replace it. Obviously don't spray anything electrical. Drywall can be hit or miss. Rat piss gets in everything and if theres turds that means theres piss. Its generally 1:1 ratio, so for every turd you see that means there was also a rat pissing there.

>>786412
please

>>782303
could you build something like this and have it be stable only using 8 foot 2x4s and wood screws. Or do the corners absolutely need to be thicker beams if you expect more than one person to be up there.

>>787821
forgot pic

>>787822
probably better to double them up
put some diagonal braces in there too unless you want it boinging around

>>787591
http://www.reddit.com/r/YouShouldKnow/comments/22t1so/ysk_not_to_vacuum_up_mice_droppings_it_can_give/

If i'm painting my walls this colour and im painting my cieling pure white first, do i need to cut in the cieling or can i get the white from the cieling on the wall without worrying?

I'll be using a white primer on the walls first because the walls have been repaired with white putty filler

I'm worried the intensity of the white that ends up on the walls from the cieling will show through the beige colour ill paint over it.

Guys, I have a question about burning clay pots. Or rahter places where I can do this and how to find them.
So far i only found like an artistic atelier, where you can make and burn your stuff, but the site said "only for profesional artists". I've also found some places where you can paint porcelain, but i don't think they deal in burning.

So how do I find these kilns? (I'm based in Berlin btw.)

I just want to have my ollas!

My roomate had a party last week and some tard put some stickers everywhere including on this door cabinet. Now my ultra-tard roomate has removed them, but with an scouring pad, so everywhere where a sticker was is all scratched and fucked up basically. Is there a way to fix this without revarnishing the whole door? Can I use some kimd of polishing compound to remove the scratches?

>>788100
Another picture, this time it is a chair. Can I polish this?

>>788100
Yeah, a light rub down with some #0000 steel wool or some super fine wet/dry sandpaper then a run with a fine cut automotive polish should do the trick (assuming he has not carved through to the timber)

Sounds like he has some materials to buy.

>>788103
The scratches have been made with a scoring pad, so they aren't deep. I probably end up doing all the work because he would certainly make it worse.
Thanks for the advice.

>>786425
Plumbers strap (pipe hanger strap)
You'll have to adjust the layout a little due to the pre-drilled holes

>>787899
You don't need to worry about leftover white if you apply multiple layers of beige (2 should do it)

I need to power 4 12vdc devices (3.5" hard drives via powered USB adapters) and I would prefer not to have individual transformers for each device. Is it possible to power all of them via one of these http://www.amazon.co.uk/12VDC-Supply-Transformer-Flexible-Display/dp/B00GWFD6B2/ ? From what i have read, a hard drive uses no more than about 1.6A I assume it could but I'd rather check with you wizards first. Thanks.

The sole of my Dr. Martens came apart, right now there's just a fairly small hole where the two rubbers came apart. I'm afraid that it will get worse unless I do something. My thinking is vulcanization solution from a bicycle repair-kit, what does diy think, will this work?

>Making the edges for a small project
>Cut my wood at awaited size
>Cut sticks in 45° angles
>Glued everything, nailed
Think I should have prepared my dados before 45° cut... Doh !

So basically do you know a good technique to make my dado yet ?
Or it is just about chisel and patience for me now ?

>>788293
/diy/ will this work? I lost the original power supply/converter.

will the converters 1.5 amp output fry the regulator? the regulator was fried on its original charger converter, its to a flashlight, the battery in the light is still good, but the charger is kill.

>>788293
sorry I didn't mean to quote you on my post below.

but you can try the "poor mans router" basically drill a hole at 45 degrees the size of your chisel. so half inch chisel, half inch hole. and smash the chisel into the hole, set the depth like you would a plane.

it may or may not work.

but instead of dados, could you butt joint then dowel it?

https://www.youtube.com/watch?v=B_2a_FwjAgk

>>788106
You might also be able to use one of those wax stain repair kits. It's a mix of stain and wax, fills in scratches with a similar color so they disappear, they make them in a bunch of colors. try paint department of hardware store before sanding. should be well under $10.
Or hell, try floor/furniture wax. if it's small scratches they'll buff right out. It won't remove them, but it'll fill them in and restore the smooth surface look.

>>788233
Just rubber cement it. Use a toothpick to get it deep in the gap. or use shoe goo if you want it name brand.

>>788325
>KA317

That's probably an LM317. Examine the circuit in order to determine that, and install one with a suitable heat sink, if that's the case.

>>788325
As long as the voltage is the same and the amps is equal to or great then what is require you are fine. Amp ratings on power supples are the most they can output by rating. They can easily output less without problems.

I want to carry something in an altoids case and was wondering if there's a way to strip the decals with household products?

>>788389
If I remember correctly a lot of it is embossed. Seems like it'd be easier to hammer flat and paint a solid color overtop? but if you're married to it and don't want to get paint stripper, oven cleaner might work? and steel wool elbow grease always works. ...Eventually.

>>788327
Thank you for the tip.. I will drill vertically with a blocker, then chisel the remaining part.

This angle is one of four corners on which 2 700x1130mm frames are going to be attached.
I want rigidity so why I put a dado, but will as well add some dowels plus some bottom blocker.

>>788389
>>788435
You're correct, it is embossed. I'd suggest that a layer of paint would be the best way of removing the label since it's painted on and I believe that any effort made to remove the paint will open up the metal to tarnish.
Empty, non-embossed tins are available on eBay if that might be a solution.

What must I expect from using an interior wood glue on a furniture made of wood that will be put outside but painted ?

>>788991
Failure. Use liquid nails or some other "weather rated" adhesive, and use some screws or nails to make sure shit does not move.

Whatchu building anon?

>>788992
I craft a rolling mini-greenhouse for my terrace. will come later with pictures of the frame.
I put some Okoume wood panels treated for outside, They are 1/4 inch thin to let the furniture light as possible. They will be glued and nailed on a pine wood frame.
I already did the bottom and the second layer of the frame with this interior glue. It's 4 inches boards of pine woods, glued with half joint, "nailed" with dowel.
Then I planed to nail my vertical bars to give it some strength, and nail the panels as well.

>>788992
So here's my frame assembled, glued, and nailed.
There's a lot of dadoes to give it strength. Tomorrow I will cut the Okoume plywood and garnish the frame.
I also need a final cut on the bottom top, to match the angle and give some strength there as well.

Does CLR go bad? I had some on my shopping list but I was just cleaning out my laundry and found a not-empty bottle of CLR. It's probably a couple years if not decades old though.

>>789379
Probably not. Might not clean as well but should be fine.

does anyone have any experience dying denim?

should I bleach it first or not if i want to dye it to sage green or black or something?


the shirt is just sitting in my closet so i figured i'd try to dye to see if it interests me, if it goes wrong nothing of value is lost

Can someone post the template for this or the Von Prankh greathelm?

I'm having a lot of trouble reverse engineering them from the photos, and I'm also out of modeling card.

Is it Ok to power an arduino via the 5v pin using a supply adjusted to 5v with a maximum ripple&noise of 80mVp-p ?

Suppose I have a 2D array of electrical loads. I want to apply a variable voltage to each one simultaneously. What exactly would that circuit look like? I already know about keyboard matrix circuits with diodes for controlling input, but suppose those keys were loads instead, that's what I don't understand.

>>790529
If pulse width modulation is a good enough approximation of variable voltage for your loads, then you can simply replace the diode-switch combinations in your pic with your loads. This would work with shit like LEDs, (small) heaters and such.
You scan the matrix like you'd scan a key matrix, one row at a time, except that instead of reading the keys out, you'll apply 8 PWM signals to the columns. The PWMs must be synchronized to the matrix scan clock or they need to very fast in order to avoid aliasing effects.
The main drawbacks of this method are the high peak voltages/currents relative to the average values, the required processing power and the very fact that it uses PWM instead of variable voltage.

There are other methods as well, but this is (afaik) the easiest way to do what you asked.

>>790539
Correction: you need series diodes for things like heaters (like in your pic).

>>790529
A matrix output circuit really only works with LEDs because you can cycle through the entire grid faster than the human eye can detect. Most other loads can't be switched off and on quickly or require a stable power supply. For those you'll need something like a chain of shift registers.

You connect one row at a time to Vcc, then light up the LEDs in that row by connecting some of the columns to ground. You need to cycle through every column quickly or there will be noticeable flicker. Each LED in an 8x8 matrix will look 1/8th as bright as normal because it's only on 18th of the time.

Which trades pair up well with Mech Eng?

So I'm working on a generator, small fan motor spins the batteries. It's just not generating and current. Any ideas what I'm doing wrong?

>>790689
Any*

>>790689
Spins the magnets*

>>790689
The stator coil is oriented the wrong way. Also just a note on your design, I don't know what your purposes are, but for something of that size, I doubt you'll be producing anywhere near enough current to require such a large wire gauge. You should use a narrower one and use the space to make way more turns.

>>790689
Your coil is all fucking retarded.
Unwind it, replace it with a single thread of coated copper, not thick plastic coating mind, I'm talking poly enamelled wire like pic related. It isn't hard to get.

You need a whole fuck-tonne of a lot more winds too and they need to be uniform and regular; you're going to want something sturdier than a toilet-roll tube so you can put tension on them.

I dread to think what your rotor looks like.

Also, if you go back to the drawing board with this, see if you can come up with a design where your stator is the magnet and your rotor is the coil, it'll suit you better.

>>790697
>>790701
Thank you both

>>789514
try cutting squares of old pants close to the same color.

typically dying something black you wouldn't have to bleach it. just jewgle quality fabric dyes, sucks when shitty dyes get bleed out from clothing AFTER you've rinsed/pre-washed.

>>786406
get some etching cream and frost the glass

Should I etch before or after forming armour?

Is hydrochloric acid fine for mild steel? Is waxing up the places I don't want etched all I have to do?

Two multi-part questions for anyone that has a moment:

Blue engineering brick and black (diamond) velour bricks; would the (class a) engineering bricks be decent for a three level sub-basement DPC, with the black velour bricks finishing off the structure for aesthetics?

Fiberboard with aluminium top, or full on aluminium desk with the intention of mounting 50kg~ worth of monitors/equipment/etc on top of it?

I live in an apartment and one of the drawers' railing has come off the bottom of the counter, the handyman just screws it back into the busted ass particle board. What should I use to fill the hole that will hold the weight of the drawer?

>>791619
Not 100% sure of what you're describing, but it sounds like the screw for it keeps stripping out of the hole.
A common diy fix for that is wood glue and a few toothpicks, if you've already tried that and it still stripped out you're going to need more glue surface.
If you can get to it, a good solution is to drill and dowel across the path of the screw, then drill the dowel so that the screw has good wood to thread into and the particleboard is supporting the weight across the diameter of the dowel rather than just the width of the screw thread. But that sounds like the problem is in the middle of the counter, not the edge so that won't help.
The only other fix that comes to mind is to route a dado and glue in a strip for the screws to hold onto. dovetail/dovetail key by preference.
Wait no, last option is to get an epoxy injector doohickey and fill the hole with epoxy and use a piece of paper or plastic to keep it from dripping out, then drill and screw in once set.

are spax screws worth it? i bought a small pack and they seem to work as advertised

>>791633
> gets rational, reasonable explanations about why people shit on namefags on /diy/
> namefags out of spite.

When someone at work asks you to stop doing something that interrupts the workplace, do you throw handfuls of shit in their face as well? Or do you just reserve your faggotry for us?

>>791768
Spax are god-tier but too expensive for most things.

>>785272
RadioShack is going out of business hit them up

I'm a pleb at anything electrical. How should I power this motor?

>>791783
No, I adjust my behavior to address the problem raised. To whit, people hate namefags because they get all pissy and try to brag about what they post. So I'm not going to be building a reputation, going to be using sock puppet names. You're welcome anon.
And I wasn't interrupting the workplace until anon started bitching at me for namefagging. This is /diy/ not /b/. So... yes, in that instance I would throw handfuls of shit in their face as well. In the same way I would if a coworker threw a hissy fit over me taking home a pen or making a half dozen personal copies on the copier or other bullshit rule that has no reason until it's abused. I'd listen to their explanation, change my behavior to adjust to any actual problems they brought up, and ignore them if I didn't agree it was a problem.
Glad I could help you with your problem, anon.

>>791887
A mitre saw tends to be pretty simple, runs off mains current. I'm too newb with electrical to be sure, but probably a universal motor which means it can also run off DC. No idea what voltage/amperage it'd need on DC though. It looks like it's rated for 240v, which is industrial current, dryers do the same thing.
American or eurofag? If in europe should be able to get a plug and some wirenuts and hook that right up since current would be at 240v most countries.
Good chance it would also run at 110v, just at less power, and you may have problems with motor overheating, because runs slower so fan isn't as fast. If it doesn't run don't leave it plugged in.

>>791887
I'd say with 120 V at 60 Hz. About 120 W should be all you need.
On a more serious note, why don't you read the label on the motor in your pic? That tells you exactly how to power it.

>>791891
UK. So if I just took a normal plug with 13 amp fuse I'd be good to go?
>>791895
I think in the uk we only have 50Hz. I'm a pleb so I didn't understand much of the label.

>>791907
>UK. So if I just took a normal plug with 13 amp fuse I'd be good to go?

Not the dude you asked, but yes. Does it just have those two wires, no earth.

You might want to consider earthing the metal casing.

>>791911
How would I go about that, just solder the earth from the cable to it?

>>791913
Yep

I want to simulate the northern lights in a bottle or jar. I think it would be a cool lamp, and its also cool to tell people I have a bottle of northern lights.

Simulating the northern lights is pretty simple and have been done many times. You basically shoot electrons into a vacuum, the electrons excite the atoms present in the "vacuum" which then gives of light.

I want to create a handheld battery powered version, because I am not experienced enough to work with high voltages.

Is it possible to power an electron gun/emitter with a battery? Could I convert an electron gun created for 220V (Found in old TVs and Computer Screens) into a battery powered version?

How perfect does the vacuum have to be? Northern lights happen in very thin air, however not as thin as a human created vacuum. That is why I believe the vacuum in the jar/bottle isn't that important..

Anybody knows what picrelated is ?

It's connected to the Internet, and I have a feeling it really shouldn't.

>>791926
Looks like a sump or basement water pump. Probably somewhere inaccessible, so webcam lets them monitor remotely for floods and clock to verify that the connection is still ok.

>>791926
Probably some sort of pressure gauge with a webcam set up so the guy in charge of it can check it from anywhere.

There's a lot of unsecured webcam broadcasts for little stuff like that.

>>791935
>>791938
Makes sense, thanks.

>>791922
It's worth noting that shooting electrons into air like this creates HUGE amounts of x-ray radiation. Most TV tubes and old CRTs are made from thick leaded glass to prevent them frying whatever they're pointed at. X-ray machines in hospitals are basically the same thing without the protection.

If you were planning on just doing this in a mason jar... well, let's just say I hope you prefer your radiation to be ionizing and your genitals to be cancer-filled.

At the end of the day though, isn't this basically just a plasma ball? You can get them in USB so I'd assume a conversion to battery power wouldn't be hard... although I wouldn't make much claim about battery life.

just got a air compressor for free.
Looks a bit like this.
The tank seems to have liquid inside tho.
Did condensation put water inside or is this some kind of anti rust thing ??

tldr: is this safe to use if it feels like there is liquid inside ?

>>791962
When you compress air, it squeezes all the water out of it, which usually ends up in the tank.

Most tanks have a drain valve on them somewhere to get it back out. I suggest using it - leaving water in there too long can cause the inside of the tank to rust out.

Our shop compressor runs basically 24/7 and needs to be emptied daily over the summer when the humidity is up.

Depending on what you're using it for, you may also want a moisture filter - spraying oily watery air through your airbrush/spray gun is never a good look, but less of an issue with other tools.

>>791973
The tank had been sitting where i got it for at least 1-2 years no use with that water inside.
I'm kinda scared of the thing blowing up.
Is my fear justified ?

>>791984
If you're that worried you can have the tank checked out or just buy a new cheap tank from harbor freight and hook it up to the compressor.

How can I secure a metal lever shear, without using a baseplate or vice secured to a workbench?

>>791984
Possibly. Rusting requires oxygen. If the compressor was sealed after its initial use and left alone, it should be ok. If it had seen regular use without being regularly drained, there would be more cause for concern. Was the pressure vessel sealed the whole time? If it were open to the atmosphere, through an open connection, then there might still be cause for worry.

My suggestion is to drain the water, and see how extensively rusty it is. Use your best judgment.

>>792001
Never mind. I used a 6" drill press vice. The thing's heavy enough now that it won't move about while cutting if I keep my foot on the vice.

>>791948
>It's worth noting that shooting electrons into air like this creates HUGE amounts of x-ray radiation.

ohh...I guess I will have to cancel the project.

My drill nibbler seems to be jammed. The nibble mechanism vibrates in place, but doesn't go up and down as it should.

I can't tell if a piece of scrap is lodged in the hole or not, and I can't seem to get the black guard thingy off of the end. The handle end's black thingy came off fine.

How do I fix this

>>792767
Never mind. The whole thing's a cheap piece of

In one end of the bit, there was a little giblet of scrap that had managed to get lodged into the guide guard thing, and that made the whole mechanism grind to a halt. This played merry hell with the internal mechanisms, which somehow became unscrewed, presumably because of the forces that couldn't go to the cutting bit.

My god, what a goofy device.

Whenever I buy something that's in a glass jar I tend to want to keep the jar and reuse it (since my parents make jams and generally use them to pickle food we grow) but sometimes despite washing the jars they still leave a faint taste of the thing that was originally in the jars. Specifically I'm talking about sauces (for example Uncle Ben's rice sauces).

So my question is, how do I completely clean the jars from the inside so they don't taint the food I'm going to put in them. Like slowly boil the jars in water? It's not very pleasant eating raspberry jam that's got a little rice sauce taste going.

thanks

>>792777
After you've washed it out thoroughly a few times, leave it under a tap.

Water's cheap.

>>792777
Try vinegar.

>>792777
Acetone is what I use. Acetone is a GRAS chemical and is allowed by the FDA to be present in food and beverages. Plus it's one of the most studied chemicals in the world so it's not going to come out as a carcinogen in 50 years.

With that said, wash it out with soap and water after letting the acetone soak in it for a while.

>>792966
MSDS sheet shows no carcinogen, but you may have other problems if around it too much.

"Chronic Effects on Humans:
CARCINOGENIC EFFECTS: A4 (Not classifiable for human or animal.) by ACGIH. DEVELOPMENTAL TOXICITY: Classified
Reproductive system/toxin/female, Reproductive system/toxin/male [SUSPECTED]. Causes damage to the following organs:
central nervous system (CNS). May cause damage to the following organs: kidneys, the reproductive system, liver, skin."

>>782303
Should I buy 80 acres in west texas for around 200$ an acre?

>>785817
don't know if this will help but look into
http://woodgears.ca/bigprint/

>>785872
call the power utility and see if they'll trim it away from the power lines, get big loppers, rent a boom lift and a chainsaw and take out the tree. once that's done, drill holes in the stump and put high N fertilizer or using a back hoe dig up the stump and root system.

>>792987
>Should I buy anything in texas at any price ever?
No.

>>791915
Thanks buddy, works a charm.
Do you know how I would go about figuring out the HP of this motor?

>>793089
http://www.google.com/search?q=1400w+electric+motor+hp&ie=utf-8&oe=utf-8&gws_rd=cr&ei=LFUeVeXCO9WradXggaAH#q=1.4+kw+to+hp

>>793097
Fanks man. I'm surprised it is that powerful.

>>782806
what kind of electrolysis, getting rid of unwanted nose hair?

>>793104
1400W is nothing to sneeze at. Watch your fingers.

>>793113
Rust removal

>>793113
Rust removal.

>>791922
dude just stick a crt tv or computer monitor behind the jar. Watch the pretty lights happen

>>791922
thanks for the ant sized photo

>>791926
Yes, Picrelated means that the picture is related to the text iun the post

pic unrelated

DIY newbie question here,

Situation coming up where I'm going to need to strip wallpaper as fast as possible. Done a little research and need some more experienced opinions, would it be faster to use a 3 wheeled scorer with a Wagner W-14 steamer or the scorer with hot water & fabric softener mix.

Thanks in advance.

>>793164
Scorer followed by steamer then scraper.

>>793164
If you have to strip the paper that fast have you considered using lighter fluid and a blowtorch?

I posted this: >>792959 yesterday and was wondering if anyone in this thread could help me out on this toroid winding.

>>787821
Use 14 guage screws. Diagonal bracing or sheet bracing of the bottom. Anchor it down somehow.

Captcha: Stird

How do I mirror polish mild steel?

>>793417

Assuming any corrosion has been brushed/steel wooled, and the surface has been fine sanded, go get some polishing compound from Lowes (there will be indicators on the containers telling you what metal is best for each compound - brass, steel, etc...) and get a rotary tool (sized for the metal your working) and have the felt wheel attachments. That will smooth it down quickly. Work it by hand to get it smoother (mirror).

I do this working on antique gun kits (depending on the condition).

>>793429
Would a set of drill wheel attachments be fine?

>>793599
Yes they work the same, just drills are more awkward to hold.

>>793637
Thank you.

A month or two ago, I asked about building a wooden squat rack/power rack in one of these SQT threads. A kind anon provided some helpful tips and stuff and asked that I post pictures when the project was completed.

Well, I completed the project. It's not perfect, since it was my first time doing something like that. Anyways, I'll post a few pictures here, since I don't think it warrants its own thread.

safety bar on the left side is missing in this photo because it's actually on the top as pullup bar.

light weight baby

>>793749
Not bad, anon. Your next project should probably be some shelves to organize your pile of stuff.

>>793751
Thanks, I just moved into this house a about 2 or 3 months ago, so things are kinda messy.

Oh, btw, i forgot to mention I didn't have a power saw, so all the cutting was done with a handsaw. It was a pain in the ass, especially the 45deg cuts. In retrospect, I probably should have just shelled out the $50 for a circular saw. It would have saved tons of time and the end product would probably have been neater.

>>793759
You got a nice workout building your workout equipment. Good jerb.

Hi /diy/; what are these?

>>794189
Keys to cheap locks.

What am I looking at here? I disassembled a jammed paper shredder and retrieved this double-ended motor. One end is a worm screw to turn the shredder. This other end has contact with two cables and sparks when it spins. Pic related.

>>794211

are you a motor virgin, dude? that's just a standard universal motor. the sparky bits are the brushes and contacts that provide current to the rotor while it's spinning.

>>794189
Pieces of metal.

>>794211
did you try removing the paper first?

that usually works

>>794211
a brush motor with a pretty clean cam

>>792986
>material safety data sheet sheet

>>792987
Where in west Texas?

Lubbock is expanding, economies good, lots of oil around here, plus land right payments for wind farms. $16,000 for 80 acres ain't too shabby at all.

>>794189
>>794195
'keys' for toilet paper / paper towel holders

I've got a friend whose USB ports are putting out absolutely filthy power, if the buzzing on the mic is to be believed. He's tried a few things, and we're sure it's the computers USB power. I'm handy enough with a soldering iron, but I know next to nothing about electronics(I did borrow a book on it so I can learn though!). If I pick up a couple of USB sockets, is there some simple circuit I can make to help clean up the power? It's for a wireless headset(When it's charging), so the USB in this case is from the base station to the headset, and only for power, no data is being sent.

I remember looking up how to repair an old video card when I thought the caps had blown, and they just had rows of capacitors to clean up the power. Is that something I can do here? I'm just not sure what specs to look out for. I would want low capacitance, and as long as the voltage is over 5v DC, I'd be good, right?

>>794384
This. Are used on Kimberly Clark models and probably more. They are inserted in the holes on the top and push down a metal tab that keeps people from opening the dispenser.

>>794556
Couldn't you just use a USB power adaptor like you get with most smartphones these days?

>>794747
That... Would probably be a better idea. But would be less fun and require more outlets to plug into the wall, so I kind of want to get the parts and put it together myself. I'm very much a hands-on learner, and it would kinda help me get context for stuff when I go to actually learn electronics.

>>794867
I suggest you use the USB power adaptor, and learn about electronics another way because you end up shorting out your friend's computer and have a big fight.

Im a humongous faggot and im going to go do some live action roleplay with a mate. A large event in Sydney with a ton of people already going.
My question was if the process or construction of foam weapons would be discussed here?
Like /k/ is obviously not.
So this would be the place and has there been threads in the past? Is it popular and will i get responses from my thread if i made one?
Mainly ideas in construction and tools and materials.

>>795069
/cgl/ might be more appropriate
>Sewing & prop-making
>Craftsmanship tools/materials & tutorials
>LARPing

>>795069
If you do, would strongly suggest you label it functional prop such as would be used in a movie, rather than as LARP. You'll end up with higher quality stuff (won't look shitty when painted etc) because movies need suspension of disbelief.
Aside from that, I think it's likely you'd get good feedback if you wanted to build a foam cutter. lost foam casting is reasonably popular on here, so I would bet you'd get some good suggestions from those people on shaping, although obviously no painting etc.

I'm building a crystal radio and want to know what kind of wires to use in the circuit. Like one example.. the antenna I'm using is solid core but is it ok to wire them to the circuit with some stranded wire? Does thickness matter? I have headphone cable and was thinking of using the left, right or ground wires.

is this called a headache rack?

how would i attach this to my truck?
I imagine I could place those little hooks that people screw into the sides of their bed and then tie-wire it to the headache rack - gheeeetttttoooo, haha
BUT I recall hearing if you drill screws into your cab, they will leak
It would be awesome if I could have it be easily removeable so i could loose 50lbs if im doing a week of commuting or a long roadtrip
hmmmm.....

>>795989
Depends on the model.
My old s10 rack had 2 sets of holes drilled at the top of the bed and it was bolted there.

>>795920
the thickness of the antenna is irrelevant, as is the type of wire (solid or stranded).

you cant use regular headphones to listen to a crystal radio, coz they require too much power. you need either an amplifier or high-impedance speakers, around 2000 ohms. ordinary earbuds are 32 ohms.

I'm pretty sure the speaker from these vintage 1970's type phones would work. I have one, and it's very high impedance, and very sensitive.

>>795920
the thickness of the antenna is irrelevant, as is the type of wire (solid or stranded).

you cant use regular headphones to listen to a crystal radio, coz they require too much power. you need either an amplifier or high-impedance speakers, around 2000 ohms. ordinary earbuds are 32 ohms.

I'm pretty sure the speaker from these vintage 1970's type phones would work. I have one, and it's very high impedance, and very sensitive.

>>796055
>or high-impedance speakers, around 2000 ohms
I've been doing electronics for a while now and I'm still stumped as to why this is the case.

I have the idea the resistors disapate power, could you explain why high impedence headphones work like that?

I know they do, but I just need something to knock my brain into gear on it.

>>796066

if the source of a signal has an internal impedance of, say, 1000 ohms, and you connect it to a 32 ohm load, that creates a voltage divider that reduces the signal by 98.4%, but if the load is 2000 ohms, it only reduces it by 33%.

>>796066

if the source of a signal has an internal impedance of, say, 1000 ohms, and you connect it to a 16 ohm load, that creates a voltage divider that reduces the signal by 98.4%, but if the load is 2000 ohms, it only reduces it by 33%.

>>782508
Flip it the other direction. If you can't, just see if you can bend the inner head to line up with the grill better.

>>786036
look up styrofoam, and how easy it is to both set it, and destroy it. I believe its either mineral spirits, or some cheap acid.

>>787503
Have fun paying for them unless you like to forcible borrow them via the internet.

>>795989
They sell rubber washers to fix that (metal washer with rubber on one side, too). That's what they use when they bolt things to boats = waterproof. And use bolts, not screws.

>>796157
do i need a nut on the other side of the bolts?\

why cant i just use screws?

The inner tubing for one of my bike tyres has got a hole at the nozzle. Could this be repaired or am I going to need to buy a new inner tubing?

Was about to head out but now I'm stuck here unless I can fix it.

My apartment has a small porch. It's pretty gross and covered in mildew. How can I clean this up? Getting a powerwasher is overkill because it's about 4x10 ft.
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>>797571

get yourself a heavy duty BBQ brush and scrub away. I mounted mine on a wood pole, so I could use it standing up.

>>797571

get yourself a heavy duty BBQ brush and scrub away. I mounted mine on a wood pole, so I could use it standing up.