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/diy/ Do-It-Yourself

Threads added between 2013/09/11 and 2013/09/18

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Most viewed threads in this category

4 more posts in this thread. [Missing image file: 1340076303245.jpg]
I want to turn an LED on and off wirelessly. How do? Are there short-range, cheap transmitters / receivers for sale? Fucking with "modding" a toy car. >random picture is random
1 more posts in this thread. [Missing image file: 210583.jpg]
Where can I buy a bottle cutter in Denver? I'd prefer to buy local because economy. I've seen them online but was wondering if they are available in craft stores and the like.

Want to make a 555 timer synthesizer

29 more posts in this thread. [Missing image file: 555 Chip.jpg]
I have very little experience with electronics, but I got the idea in my head that I want to build my own 555 timer synthesizer. I want to build one with two oscillators, a high pass and low pass filter and/or VCF, an LFO, and a attack, decay, and sustain filter. I don't expect to be able to build one with all of this stuff right off the bat, but I would like to at least have a place to get started with maybe just one of these elements on it. Anyone have some tips on how to do this? I should mention that I want it to be musical enough to use with a band and NOT an electronic fart maker like the Atari Punk Console. I also have no intention of setting it up to play with a keyboard because I've seen that it's immensely complex and I'm pretty sure I could just use a frequency control knob and manual gate (or kill switch) to get the notes I desire to play. Thanks, all!
2 more posts in this thread. [Missing image file: IMG_0021.jpg]
What tech can i put into my house,im about to build and want to put some things like lights and appliances in that i can run off smartphones,iPads, what do ppl recommend pic unrelated

silent alarm that sounds

7 more posts in this thread. [Missing image file: th.jpg]
hello to all who read. im looking for some help on something. there is a nurse that works at a hospital that i want to have sex with. she agreed to do it in the doctors office if i could make some kind of alarm. i want the alarm to activate when the door opens but i want it to be silent. i dont want anything to vibrate or sound off. what i want is, the alarm to activate a light where we will be but the light needs to be wireless because the light will be in the closet where we will be. any ideas anyone? i also am on a budget so if this could be under 10 buks, it would be great
3 more posts in this thread. [Missing image file: o5SQWVx.gif]
I need help with straight cuts. I recently bought my first table saw as I've moved in to my own house. I've used table saws before but never on cuts this long, usually less than 16 inches. Now I can't get the fucking cuts to stay straight. I've ready about feather boards and it seems like a good idea. The only issue is I have a straight jig that came with my saw and when I try to use that the pressure from the wood not being able to split away from the blade causes a ton of kickback. Do feather boards still have this issue?
2 more posts in this thread. [Missing image file: T2eC16VcE9s4Ptm-1BRZ3ss4Ns60_35.jpg]
so, i was wondering if there is a way to figure out the amount of heat generated from a light (an led, in specific) if you know the input voltage/current and know the lumen output. forward voltage 3V 300mA 100lumen
7 more posts in this thread. [Missing image file: FA5QHH5HJKC2HV2.LARGE.jpg]
I keep a lot of wrenches and sockets in a tool box in my truck since pretty much thats where they get used 99% of the time. The thing is the sockets are just sitting in a pile at the bottom of the tool box so when I need one its a pain too hunt for that one size you need at the moment. What is a good way to organize sockets in a regular tool box? Pic unrelated but sort of cool
5 more posts in this thread. [Missing image file: 2013-09-17 17.04.13.jpg]
Hey /diy/, a laundry machine/pluming question. I noticed two valve openings? For new water to be pumped into the laundry machine. So one is plugged into the machine but the other is unsealed. What is the piece called that seals up this opening? Pic related
3 more posts in this thread. [Missing image file: image.jpg]
How do I tell how much this condenser can hold and if it's charged
11 more posts in this thread. [Missing image file: EDF90-MAIN.jpg]
Hi all, I have just brought pic related to make an autonomous thrust-vectoring VTOL. It will be a proof of concept before I try to make a thrust-vectoring solid fuel rocket. I am having trouble picking a unit to run everything so I'll list what I need. >triple-axis gyro >triple-axis accelerometer >triple-axis magnetometer >3 servos >EMC for the fan I looked into using a Raspberry Pi but the outputs can't run Pulse Width Modulation fast enough for the EMC. I'm now thinking about using a Arduino with a 9 Degrees of Freedom - Razor IMU. Any advice would be great as this is all new to me.

making your own screens' support

8 more posts in this thread. [Missing image file: 61NkCV8FdYL._SL1500_.jpg]
Hello /diy/ has any of you already done some screens' support ? the plate screwed behind the screen seems not that difficult to create, 4+1 holes and a press to give the central volume. With tubes of steel, I can also attach them easily. making then a central tube, going into the Desk, or, direct in the wall ? What are your experience or thoughts ?
4 more posts in this thread. [Missing image file: 11218.1L.jpg]
Hey /diy/. Long story short, I need a bag to carry stuff around. No money to buy the only viable option around which is expensive in the size I need. The design that I want is a sailor bag/duffel (pic related but not this big. Maybe 60% of this size). Other options are either non-existant or would not fit my needs. The design seems very simple so I want to sew one myself or pay someone to do it (easy to find people that do this kind of work around). What kind of material/fabric would be good to make a bag like this? It seems that they are made of sailcloth but I doubt I will find this kind of thing around. I need something to carry 10kgs of weight. The blueprint of it would be a round part on the bottom sew to two rectangular parts that make a hollow cylinder. Simple like that?
7 more posts in this thread. [Missing image file: 171743_400x400.jpg]
Hey DIY! Long time lurker so forgive me. I bought a full oxy acetelyne torch kit and would love to use propane instead. Can anyone point me to what part I would need to go from a cga 510 acetylene regulator to propane? http://m.northerntool.com/mt/www.northerntool.com/shop/tools/product_200413935_200413935

Simple circuitry question

10 more posts in this thread. [Missing image file: liquor light1.jpg]
Greetings my fellow /diy/orks, I have a pretty simple question about an extremely simple circuit, but i'm almost entirely ignorant when it comes to electronics, and google isn't helping me much. I make lamps that are powered with LED strip lights. For most of them, I just cannibalize a 12v charger of some kind and solder the wires directly to the solder points of the strips. (pardon my lack of proper terms) However, for others I solder on a 9v battery adapter to make a portable light. In both cases the lights are just wired in series, and I know for a fact that they can be powered from either end of the strip. So here's my dilemma: A customer wants me to make him a lamp with both options. He wants it to have a cord, but also be able to take a battery for when he wants to move it around. How exactly should I go about doing this? As it is I can only think of 3 different scenarios. A. just solder both the power supply wires and the battery adapter wires to the same points, on top of each other. B. solder one supply onto each end of the strip, powering it from one side or the other as needed. or C. have 2 entirely separate circuits with different lights for each circuit. (i don't want to do this, as more overhead costs and less space to work with, but if need be I can) what are your thoughts on this? I know that having 2 power supplies can be tricky and that batteries can explode if they short circuit, so i dont want to just learn as i go. pic related
3 more posts in this thread. [Missing image file: lego-robotic-arm.jpg]
What's up /sci/. I'm working on a lego robotic arm that can perform a few simple functions such as throwing a ball and screwing a nut onto a bolt. The controller/battery has two functions (forward/back) and I'm trying to figure out how to make one function open a claw (to throw the ball) and spin (to screw on the nut). I'm kind of at a loss for how to put this all together. Any ideas? Thanks.
2 more posts in this thread. [Missing image file: image.jpg]
Anyone here who built a ping pong table want to share their experience of building it and how it came out?
8 more posts in this thread. [Missing image file: table-saw-test-01-0212-lgn.jpg]
Does /diy/ have any experiences with a portable table saw? Anything you've all used and recommend? Anything good for $200 or less? Thinking of picking one up soon and have been reading up on reviews but I was hoping for some first hand accounts from fellow anons.

Laptop Stand Research + DIY prototype building advice

0 more posts in this thread. [Missing image file: Dock 3.jpg]
I was wondering if anyone here had any info just on the top of their heads that could help with some research for laptops. Any experienced opinions would be really helpful. Materials, components, joints, manufacturing processes, finishes, ergonomics and anthropometric data and environmental/safety concerns. (pic related)
6 more posts in this thread. [Missing image file: image.jpg]
Hi /diy/, I have some questions that I think one of you might be able to help. I have a shirt (pic related) that has specs of pink all over it. I want to try and recreate this design as close as possible, but I have no idea what I would need to begin. I wanted to make one with blue an gold/yellow. What dyes would I need to use, ahold I use one of the colors as a base for the shirt, or use a white t and do both of them. Also the method I need to use, should I individually recreate the dots, or try an evenly splatter them with a brush.

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