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Archived threads in /diy/ - Do It yourself - 87. page
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Hi /diy. this is my first post and i have one simple question : Would it be possible to get (let's say) 4 pc screen; and to assemble them into a bigger screen.
The problem is the multiple controller cards; and how to wire it. I don't want to buy multiple pc monitors, and i can get screens like pic related for nothing.
Any idea is welcome!
20 replies and 2 images submitted. Click here to view.

you would need a controller like the commercial systems use to be able to split the signal 4 ways to display on 4 monitors
what? No you don't. NVidia and ATI both do it.
AMD pushes it more/
Windows has done this since windows 95 for normal applications.
If you can get old laptop screens for cheap or free, you can buy controller cards for them from eBay (assuming it isn't some rare type of screen).

I did this for a laptop screen and the controller board was only AU$20 inc. shipping. It had a VGA input and HDMI input on it, and some buttons to control the screen menus (brightness etc).

This way of doing it would mean one output on a video card = one screen.

If you could get a single controller board for multiple monitors that would be pretty cool, but probably more expensive.

This way of doing...
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So I want to get started on welding, should I buy the 150A thingy or the 250A thingy? Whats the practical difference? Also looking for advice and tips on general welding.
116 replies and 12 images submitted. Click here to view.
Inb4 welding classes

With the 150A one you can use electrodes up to 3,2mm. With the 250 one up to 4mm maybe 5 if they dont have a thick flux. It also depends on the type and brand what amperage they need to be run on. You will be more limited with the 150A, but if thats good enough for what you want to weld, then get the 150 one and save some money.

Are they DC or AC?. I prefer AC runs smoother, no arc-blow,

check the duty-cyle. The 250 will probably have a higher one. meaning you can weld for a longer period of time with...
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I'm planning on buying a bunch of electrodes and practicing on scrap metal until I eventually get the hang of it.

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Hot air blowers that run on gas, are they gimmick or they can actually do some work compared to classic stationary ones ?
14 replies and 2 images submitted. Click here to view.
I've seen some very decent wood burning done with one of those, no idea how well it would work for soldering though.
pretty handy for us at work only use it for soldering
though...lasts some time so it's ok
Bought two of these a week ago, one for me and one for my dad.

Pretty good for soldering, haven't used it for anything else.
3 year warranty at 20€ per iron is a pretty good deal too.

And the tips from a Weller Pyropen Piezo also fit right on.

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sup /DIY/

so ive got this project and i have to explain the two welding processes (gas welding and arc welding)
im a bit stuck on what the joining techniques of each are and the operations of each

also whats do arc welding and gas welding differ when it comes to the function or would you weld the same project with either or?
8 replies and 1 images submitted. Click here to view.
fuck off mate do your own homework
Here's a good start


How hard is it to research online?

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I want to do some work on a small dam or a large pond at the moment it holds water but only for a limited time i want to dig out the earth in there and line it with some river clay that i have access to i also only have a bobcat to do it with what i want to know is this like the clay thinkness and other ideas

I also live in rural noth east QLD Aus
12 replies and 1 images submitted. Click here to view.
whut? so you want to dam a stream so you can line it with something else? if so you don't need a dam you need a diversion. that being a way to divert the stream from where you are working otherwise the dam resivor will fill and the dam will overflow in a matter of minuets/hrs whatever depends how much water and how tall your dam is. would nee pictures if you want moar mabie some topographic sketch or some such shenanigans
what you need is time to just a small trench,

and then expand from small,

like how it is done 100+years ago

just start small and expend, and constantly adjust and trial and error until you like it
I am confused but if I understand you correctly:

You have a pond. The pond has a creek feeding into it (inlet) and a creek feeding out (outlet). Assuming this pond is not a kangaroo breeding ground, you will not need any permits.

Step 1) assess kangaroo situation
Step 2) get permit (if required)
Step 3) dig trench from inlet to outlet around existing pond
Step 4) build temporary dam at inlet and outlet to prevent water from entering pond, forcing it to use trench.
Step 5) wait for unbearably...
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My father, along with most of my uncles, are HUGE on hunting.

They've all used Trail Cameras before, but the results are usually haphazard at best.

What I want to TRY and build would be a wireless Trail Cam, either one that uses a cellular signal, or one that connects to a wireless LAN to deliver both captured images, and live video if possible.

I'm open to a lot of ideas, and I've seen some stuff online about it, but I have no clue where to start.

I've seen people use wireless IP cameras, custom built boards, etc. I would love...
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14 replies and 2 images submitted. Click here to view.
So like.... a motion detection camera that sends you a snapshot or video stream when it detects a critter? I think that's fairly doable with a Raspberry Pi.

What kind of range are you looking at? And what are you going to use on the receiving end?
autist woodworker Matthias Wandel has you covered; see this: https://www.youtube.com/watch?v=l4PaGvAhV9I
Battery is going to be a problem. A pi will take to long to boot and miss whatever it is supposed to be recording. Running it all the time will require too large of a battery to run for days/weeks like a commercial trial camera.

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My ancient, $75 Walmart, surround sound system, subwoofer ripped along the side. I'll eventually get a new one, but damn, this quick fix with duct tape is actually quite good.

I've been using this to test it,

I don't know how long it will stay in place, but it sounds fine and handles deeper bass a lot better than it did its entire life. Anyone on /diy/ ever do ripped speaker repair?
12 replies and 2 images submitted. Click here to view.
I used the sticky from a rolling paper once
don't get mad when your driver seizes up from too much resistance.
You do know a new surround costs about a much as the duck tape you used to fix it right? Thats the bit that tore, the surround. They are replaceable. You make me sad. You fucked up a speaker and didn't even do it the right way. You could have at least tried to fix the surround the proper way and, even if you fucked it up, you would have tried and probably learned something. Instead you went full redneck/nigger rig on it. Thats not what /diy/ is about.

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Hello /diy/,

I'm new to this board and I heard a lot about Rasberry Pi.
I understand it's a micro-computers but what can I do with this ? Since I don't know anything about it, where should I start to learn how to use it ?
28 replies and 1 images submitted. Click here to view.

Video is kinda outdated since the B+ but still, my point is, you can learn a lot about the Raspberry Pi and really anything else on youtube. Youtube is great for this sort of thing, search around on there.

Also check this out right now,

Thanks, I'm checking this out !

I've already bought this bundle, that's what made me curious about all of this and made me visit this board ! I haven't read all of these magazines yet though but I feel that I need the very basics before continuing reading them. (and your video seems to be able to help me)
Honestly, I would say the RPi is more /g/ than /diy/. That doesn't mean there aren't plenty of cool embedded projects you could do with it, but you have to understand that it's an actual computer and not just a microprocessor, and is therefore more suited towards such high-level tasks (for instance, hosting your own web server or doing graphical processing).
That's not even a B+, that's a B.

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I love multirotors and I have a Quadcopter that I have built myself so I am not a total noob but I am not super knowledgeable either since a friend helped me build it. The only part I really don't understand is the ESCs, my friend programmed mine and while I want to build a FPV tricopter, I don' want to have to do this. I see there are pre-flashed ESCs but I don't know if they are compatible with what I want. Do pre-flashed ESCs come with different settings that I need to be aware of?

Basically is all this stuff compatible?

Turnigy Talon...
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11 replies and 1 images submitted. Click here to view.
>The only part I really don't understand is the ESCs
So you're comfortable setting up and tuning a flight controller like a Naze32? That's really more important than reflashing ESCs. It's not too finnicky with Cleanflight Configurator or similar, but there are a lot of steps and it's an important and surprisingly time-consuming setup.

The ESCs you chose already have SimonK firmware, so they should work great without programming/reflashing (even those that don't have multirotor firmware still work, but SimonK or BLheli improve response considerably and let you crank up the gains more). Brushless ESCs and motors can be reversed by simply swapping motor leads, make sure to check all the directions and response before you put the propellers on.

I'd also avoid the raceband transmitters, ImmersionRC/Fatshark keeps introducing proprietary shit to try and box competitors out of the market and force customers to buy new shit, and the raceband is just another example of that.
I am not rewriting this shit on another thread, fuck off. I will however search next time before posting.

Oh yeah I comfortable with the Naze32, not really any other flight controller. My quadcopter has a naze32 and while I use Baseflight instead of Cleanflight, its all the same really. I don't know every command you can possibly run in Baseflight, but I know enough to setup a Quad/Tri-copter.

I knew those ESCs had SimonK cause of a thread I found but what I am confused on is do I need Brushless ESCs for Brushless Motors? I found some Brushless ESCs and they are really expensive, what are they used for?

Also I didn't realize my A/V transmitter was a raceband or even realize what that is but I'll fix it and get something else. I have the Fatshark Attitude V2 for a headset.

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Any idea how to remove this white dielectric without such tools as there?

https://www.youtube.com/watch?v=5_NlDslWBaI [Embed]

(Yeah, I have to remove it between these two conductors)

pic related
5 replies and 2 images submitted. Click here to view.
knife for jacket and ptfe
junior hacksaw for shield
ruler for measure

wow these guys mean buisness
>lubing the assembly rather than the oring separate
never mind
I just use a knife.
The careful application of acetone.

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I want to find something I can make and sell. Just something (ideally unique but I know thats hard to manage these days) that i could sell on etsy or the like for a bit of extra cash.

I have a TIG welder, basic wood and metal working tools, basic knowledge of micro controllers and electronics.

I need ideas. I have friends making cutting boards and pepper mills but that market seems saturated. What else?
38 replies and 6 images submitted. Click here to view.
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If we give you ideas, what happens to our get rich quick scheme? Think about it.
Fasteners made of gummy bear material.
Well there is the thread about the guy trying to make a large dildo or something? Custom dildos?

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Hello /diy/
I'm currently staying at a dormitory and next month we're moving to an apartment with my roommate. We rented the apartment and the papers we signed implied that there was a wardrobe near the entrance. However there wasn't. Instead of removing that line, the landlady (nice woman) gave us an allowance of $250 (approx.) to buy or build a wardrobe. She's gonna check the bills and pay us accordingly.

I've made an authistic drawing of the space that we're gonna place or assemble the wardrobe. The brown area is the space for the wardrobe,...
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14 replies and 5 images submitted. Click here to view.
Build your furniture with mini ties. They are pressure treated, strong, easy to work with, and they look nice.

Youre welcome.
Will you be able to make a built in wardrobe? That should be much easier, your first step should be to attach a frame around the alcove (2x2 should be enough). Next depends on whether you want to split it or keep it as one large wardrobe.

If you can supply pictures I could give you a simple sketch (how you want to do it will depend a little on details)
Moreover I'd say you need a saw (what kind depends on choice of material (I wouldn't cut sheets of plywood with a hand saw and expect it to be straight but I suck at sawing)). A level is a bit of a must. A hammer or screwdriver (protip, screwdrivers require less skill (don't laugh, it's true) but some might prefer the flat head of a nail for aesthetics (there's also nailguns and jointing but for a simple and cheap solution I think those are out.

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Is it ok to fill a ceramic gnome wtih cement to strengthen it? Could the cement expand and crack it?
33 replies and 4 images submitted. Click here to view.
I'm not sure whether it'd crack or not, but if you want to be sure you might wanna try urethane foam instead.
If you want to strengthen it without cracking why not apply cement to the outside?
You're kidding right? PU foam can break door frame out of wall if applied too generously.

Cement should be fine. It would contract if anything. Use more sand, to make the bulk of "passive". Still, without reinforcements (steel armature and sharp, hard rocks) it's quite fragile anyways. Maybe there are better options?

I'd look into just coating the inside of it with something more rigid.

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Ello diy, I've made this teething ring for my niece and was wondering what I should treat it with considering its gonna be chewed on by a babby.

Also considering it would look fucking gorgeous with a shine.
23 replies and 2 images submitted. Click here to view.
Why type of wood is it? A lot of common woods (such as Oak) are mildly toxic, while some others (Yew) can be very toxic, especially to small children.

Maple is extremely non-toxic to humans, and has a dense, hard grain structure to boot so you can be relatively sure that splinters don't break off in the kid's mouth.

If the wood is sufficiently non-toxic I'd leave it bare, if it's not then I'd do a thick layer of polyurethane or something else that sits on top of the wood.
Its tough identifying wood, but I'm getting a walnut vibe.
Mineral oil is what most people use on wooden salad bowls or kitchen pencils. Don't use baby oil because there are fragrances and other crap added to the mineral oil.
Mineral oil does not dry. And requires additional coats to protect the wood.

Another alternative is to use boiled linseed oil and allow it to dry thoroughly. Then use paraffin wax to coat the wood. Once dried the BLo is non-toxic and will harden the wood. The paraffin wax creates a nice smooth waterproof seal.

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Hey DIY, do any of you know what the mechanism in the aperture (pic related) is called ? Any suggestions on what else I could look up on google are greatly appreciated. I've googled Aperture mechanism and images come up of what it looks like but I would like to know what it's called because I want to do it myself for a project... If that's impossible, do some of you know where I can get such a mechanism cheaply? I would be really grateful. Thanks!
12 replies and 3 images submitted. Click here to view.
Broken camera
Head chopper.

Honest question, do tripfags not know how to google? because I spent two minutes and found what the mechanism was called.
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Nothing turns up for Head chopper for me.
Sorry for using the tripcode, I just use it when I make a thread to confirm OP-ness.

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