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/diy/ Do-It-Yourself

Threads added between 2012/10/24 and 2012/10/31

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Most viewed threads in this category

22 more posts in this thread. [Missing image file: 1349464495117.jpg]
/diy/, I've never had a black eye. I've had many different bruises in my life, but never in or around the eye area. I want a black eye, /diy/. How can I give myself one without damaging my eyes? I like my eyes and seeing stuff with them, but I guess I also have a thing for self-harming to an extent, and I think bruises look nice. How can I damage the tissue around my eye without harming the eye itself?

Hidden Camera

1 more posts in this thread. [Missing image file: Mini_Spy_Pen_Camera.jpg]
Anyone know of an easy way to make or get hold of a hidden camera? maybe something like those cameras in pens? obviously wanting it to not be too expensive and not too obvious. feel free to ask any questions

Can't find poles on electromagnet

9 more posts in this thread. [Missing image file: P1020966.jpg]
I built this electromagnet as a test using an AC to DC adapter as a power source. However, even though it does attract things, I can't get it to repel. I have a permanent magnet, and no matter from which of its sides I put them together, they always just stick to each other, never repel. As I understand, the electromagnet poles should be on its ends along its length, right? So what could possibly be causing this? Does it have to do with the electromagnet strength?
4 more posts in this thread. [Missing image file: l.jpg]
Hey /DIY/ers. I'm looking for people who work with guitars or wood. I'm looking to dye my rosewood fret board the same color as the Ebony fret board on the guitar pictured without any of the stuff coming off onto my fingers so don't say Sharpie thanks. 1. What do I need? 2. How should I do this? 3. Where can I buy everything from? Thanks guys.
1 more posts in this thread. [Missing image file: ferrite_20080731.jpg]
Is it possible to reuse Ferrite Beads? I have an HDMI cord giving feedback and screwing with my wifi. My radioshack is going to be closed for a bit with the weather and want to fix this now.
3 more posts in this thread. [Missing image file: Dr Pot.gif]
What's up dudes I'd like to make a remote control for my light switch for my room., I'd love to be able to be in my bed and turn off the lights, but I'm not sure exactly how to go about doing this. I was hoping some of you guys(or girls) would be able to shed some light on what might be entailed, and I hopefully see if anyone's got any links to anything related I could read up on. I haven't really delved too much into this project yet,only thinking it up some 15 minutes ago or so, but I figure I'll need to do an RF transmitter and receiver, probably running off of a 12V or 3V battery, but I'm not sure exactly how to do the actual switching of the light. Would I have to use a relay? I'd like to keep the mechanical action for sure,and just add the RF receiver in addition to that. I guess I'm hoping that someone can kind of point me in the right direction, like I said I haven't looked into it too much, and I'm thinking I'll be able to find a fair amount of info on the rf transmitting(although again if anyone's got any links they could share,I'd be much obliged). I'm more curious as to the actually switching, so if anyone knows anything about relays and shit, what the hell do I have to do here? All I've found online so far has been commercial products tht cost way more than I feel like spending on laziness.
16 more posts in this thread. [Missing image file: Photo 129.jpg]
Hey /diy/nosaurs! Does anyone know the proper name, where to get replacements, where to get screw drivers for the screw you can find in the back GameBoy cartridges and Famicom machines?
6 more posts in this thread. [Missing image file: 4chan.jpg]
Good/fun homemade weapon ideas anyone?
13 more posts in this thread. [Missing image file: Untitled.jpg]
I plan to create a bug out location at the bottom of a stairwell in a rarely used building on campus. It needs to be concealed in case someone were to ever use that stairwell. I want to block off the space under the stairs with matching cinder blocks and create a crawl space that can be reached through a small door. I have very little experience with home improvement type work. How difficult of a project will this be? If I work hard at it, will it still turn out looking like shit?


34 more posts in this thread. [Missing image file: Zpk5I.jpg]
I have: IC Dextroamphetamine 5 MG TAB BRR - 58 pills Adderal XR 20 MG - 17 pills IC PROMETHAZAINE 25 MG - 30 pills IC SERTRALINE HCL 50 MG - 21 pills IC CYCLOBENZAPRINE 10 MG - 45 pills IC DIAZEPAM 10 MG - 30 pills IC HYDROCODON - ACETAMINOPHEN 5-500 - at least 70 pills Would this work? Please only serious answers. I have no desire to be found or to wake up in a hospital brain dead/and or neurologically messed up.

Vernier Caliper

24 more posts in this thread. [Missing image file: caliper.jpg]
so /diy/, I am looking for a decent caliper that will last me a long time. Basically, what has been intriguing me are vernier calipers with fine adjustment screws. Does anyone of you recommend such a tool over a simple version like with a locking screw or a simple thumb clamp? >Inb4 digital caliper: I would achieve the same accuracy with a similarly priced vernier one with the advantage that there is no electronics to break and the disadvantage of less ease of use. I'd prefer reliability. Also, didn't see any digital ones with fine adjustment screws, which is the part why I am asking you in the first place.
2 more posts in this thread. [Missing image file: 7aacf904-542b-42a5-e5d2-7f8b62277e69[1].jpg]
Hi, I'm trying to clean my monitor and followed this http://pcsupport.about.com/od/maintenance/ht/cleanflatscreen.htm tutorial, but I'm not sure whether the vinegar I have is right. I have 'Tafelessig' (table vinegar) made of 5% brandy, pic is not the exact one I have but very similar; the tutorial says to use white vinegar though Is that the same thing or is this stuff for food only? Or can I also use this?
4 more posts in this thread. [Missing image file: 412795642845125.jpg]
Hey /diy/ i got an xbox 360 and it doesnt work. Any cool ideas on what to do with it?
5 more posts in this thread. [Missing image file: 1319454883986.jpg]
Hey /diy/ quick question. My car has an exhaust leak and I want to fix it myself. I was thinking of cutting a piece of curved aluminum and then using JB weld to fix it over the leak. Is this a decent fix? I really don't want to pay a mechanic to fix it.
2 more posts in this thread. [Missing image file: bg944_021.jpg]
I'm working on a viking age costume, and after some googling I came across sources for hand-woven embroideries made out of metal threads, called "posaments". The problem is that I can't find a single guide on how to make this myself. Can you guys help me? Pic related.

Stepper motors

4 more posts in this thread. [Missing image file: ST4118.jpg]
I'm currently working on an early project and I wonder about feasibility. Setup: Stepper motor (type not sure about), one gear attached (weight 10g), turning another gear (10g), ratio 1:1, turning a sleeve bearing with minimal friction. I want that stepper motor to turn something mounted on an axis from 0° to 63° within 0.03s (+/- 0.015s) via gears (1:1..2:1 max gear ratio, that means either direct or slower). Within this angle I want to have at least (can always be more) a dozen steps so I can adjust the specific angle. Many stepper motors have steps of 1.8° --> 63°/1.8°=35, so at least this will work out. The friction of my simple gear will likely be higher than the friction of what I am moving. Both are rather negligible I'd say. Something similar to a proper sleeve bearing, maybe. So what I worry about is inertia, unfortunately I suck at this part of physics and stepper motor electronics. The gears have a weight of ~20g and are attached with proper ball bearings. The application needs to be mobile and compact. That means powered from a couple of eneloops and of 40mm width or lowered. I can provide up to 35V@4A via a switching amp if needed (although don't expect it to be ripple free at this much current). Question: Will a stepper motor be able to accelerate two 10g gears (one attached to the motor, one to my axis mounted piece) to 35(?) 1.8° steps (or 63° with at least 12 steps) within 0.03..0.045s? What kind of stepper motor should I be looking for? From what I understand about steppers so far is that they need a ramp to accelerate, but I'm not sure if I'm already within the need for such a thing, or if it's even doable. Anyone can help me out?
10 more posts in this thread. [Missing image file: 1307308870413.jpg]
How do I, as a 19 year old student with an interest in business and finance, raise start capital to begin investing? And how much money should I expect to raise before having a noticeable profit from investments?

Medieval armours

6 more posts in this thread. [Missing image file: _IGP0021.jpg]
Hey /diy/ , newb here. So i've been inspired by medieval Assassins and Assassins creed. I want to make leather armour, that's unique. But i have no idea how to deal with leather, nor metal. I don't want to buy already made armour, because i wont be able to fix it later if i ruin it somehow. Please /diy/, give me a start. ( Not full leather, since i am acrobatic and "sneaky" type. I could also put in a design )

How do I move Forward? (Any Science ppl)

10 more posts in this thread. [Missing image file: 30_cell_image.jpg]
I have an innovative idea for a treatment of a viral infection (not HIV, I wish) that I want to pursue but I have no idea how to move forward as I'm just a middle class college student. I don't want to tell a random professor so he just steals the idea, but I don't have my own lab either. Any ideas/ways to get started on mobilizing my idea/moving to the testing phase? Anything I'm missing? (I've finished all lab procedures/tests I'd want to do as well as theory and research into prior methods etc.)
10 more posts in this thread. [Missing image file: 45d38c8a58698886db349af208f977e4-pr(...).jpg]
Hello my /diy/ lovers i come to you for some help with a project. I need to build a robotic mic stand - so I can have a way to adjust a mic stand in recording sessions without having to leave the monitoring room everytime. It's part of a school project, and I have the arduino at my disposal. Is it possible to be done? do i have motors with arduino powerful enough to rotate, move and stretch parts of the microphone tripod? Pic related is the stand, thanks guys

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