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2023-11: Warosu is now out of extended maintenance.

/diy/ - Do It Yourself

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>> No.161053 [View]

He's been banned before but has a dynamic IP. I've been considering writing a Firefox extension that hides posts with the word "kid" used more than once.

>> No.160993 [View]

>>160989
Also it had a little metal roof because it was outside and rabbits don't like rain and snow.

>> No.160989 [View]

I had a pet rabbit as a kid. We built a rectangular frame out of wood and used a staple gun to put wire mesh on it. The bottom was wire mesh and it was raised above the ground so the poop could fall ou. There was a hinged door on the front to take it out for walks. It had one of those drip water bottles for guinea pigs. Rabits are pretty docile; they won't try to break out.

There's some old electric ovens in my basement I've considered converting to rabbit cages. They already have doors and mesh floors. Really any large metal, plastic, or wood box could be used with a few modifications.

>> No.160964 [View]
File: 676 KB, 1200x798, goggles4.jpg [View same] [iqdb] [saucenao] [google]
160964

>>160937
These are the way cool goggles I used to wear while VJing. I covered the backs of the LEDs with black paint to prevent light from shining in my eyes. They're no more difficult to see through thank those shutter shades Kanye West wears.

>> No.160946 [View]

>>160892
I got one of those a few years ago. Not only are they cheep and illegally powerful but they can broadcast on special frequencies which radios you buy in North America won't go to.

>411.0625 MHZ. Broadcasts on my city's subway PA system.

>> No.160932 [View]
File: 3 KB, 335x232, 555_circuit.gif [View same] [iqdb] [saucenao] [google]
160932

>>160908
The 555 multivibrator is a good beginner project. It can flash an LED or make a speaker tone depending on the resistors and capacitors you use. Once you've got it done there are many ways to expand on it like using it as a clock source for a binary counter chip or connecting it to a MOSFET to drive bigger loads.

Also its best to put your circuits together on a solderless board first before soldering. That way when nothing works you don't have to figure out if the soldering is bad or the circuit itself has problems.

>> No.160475 [View]

>>160453
Use conductive foam. It's that black stiff sponge stuff chips come pushed into. It drops in resistance as you press it.

Other options:
Piezoelectric Crystals.
A spring with a HALL sensor and magnet at either ends.
A spring with a IR phototransistor and IRLED at either ends.

A linear potentiometer with a spring on it.

A rotary potentiometer with a spring on it. (will require trig to convert to linear force).

A Neoprene Bend Sensor

A linear encoder with a spring on it.

Two parallel plates held apart by some compressive non conductive materiel as the C in an RLC circuit.

>> No.159257 [View]

A resonant tank means a capacitor in parallel with an inductor. Is there are reason why yours are in series?

C1 is too small to provide any smoothing.

Did you pull the 30khz switching out of the air; or do you understand how LC resonance is supposed to work and calculate the correct frequency?

>> No.158268 [View]

>>158255
I love this idea. This is an arcade machine I built in University. Its still running in the student lounge five years later.

http://www.youtube.com/watch?v=OMP28JZBSlo

>> No.154286 [View]

You can get a microcontroller to generate video for them without too much work. Create a serial terminal; display for an Ipod shuffle; clock etc. Alternatively convert it to vector and get a nice oscilloscope display. There are also some nice components for high voltage projects.

>> No.154161 [View]

Is it an Ipod? Those do have an RS232 port on them that can be used to set volume. Its what doc stations interface to. You'd need a computer with a serial port and a MAX232 to change the voltage level.

>> No.154157 [View]
File: 32 KB, 604x453, still.jpg [View same] [iqdb] [saucenao] [google]
154157

My recipe:

4kg of sugar. 16Litres of water. One tablespoon molasses. One squeezed lemon. One squeezed tomato. Shake a few times for two days. Cover and let sit for two weeks. Distill away.

>> No.154152 [View]

>>153915
I've done the same trick with cottage cheese. Mix in some skittles and watch it go double rainbow.

>> No.153706 [View]

Check the continuity of the wires. If you find a broken one replace it.

>> No.153703 [View]

>>153676
I've played around with "painting" dark fabrics with bleach a few times. I put zebra stripes on my pants that turned out quite well. You could probably produce something like that dress the same way. Drops of pure bleach for the stars, some diluted bleach for the cloudy parts; maybe a little dye for more color.

>> No.152792 [View]
File: 5 KB, 240x240, 58158mm65289bandhitorqueclamp_164909.jpg [View same] [iqdb] [saucenao] [google]
152792

If you're having trouble holding the scap wood with screws you could go with pipe clamps instead.

A good epoxy might also do the trick.

>> No.152756 [View]

>>152747 may or may not be actual remedies and possibly may be placebos.

Its not a question. Homeopathy is extremely overpriced water. There are no medical ingredients. People have killed themselves and their children because they believe in this garbage enough to use it instead of real medicine for serious illnesses.

>> No.152711 [View]

Here's a better one:
http://www.howdoeshomeopathywork.com/

>> No.152065 [View]

Xoscope isn't bad.

>> No.152022 [View]

There was a place called "star travel cuts" my friends and I abused when we were kids. They issued these really official looking ID cards with your picture and personal info on them. They were supposed to get you discounts at airports or some shit I don't remember. The magic was that nobody verified the information you supplied, so we'd just make up a birth year of legal drinking age then get an official looking ID made up with professional grade equipment. The cards worked everywhere.

>> No.151984 [View]
File: 47 KB, 509x341, Capture.jpg [View same] [iqdb] [saucenao] [google]
151984

>>151971
I Forgot to mention that you can buy "broken" solar cells for ridiculously low money. Professional manufacturers don't want to use them because they look like shit, but they still work properly if mostly in one piece.

>> No.151971 [View]

>>150275
I've built several solar panels before.
I went through all of ebay and drew up a table to figure out how to get the most amount of voltage*current for the least amount of money.

This was the winner:

>http://www.ebay.ca/itm/ws/eBayISAPI.dll?ViewItem&item=140642079761&ssPageName=ADME:L:OU:
CA:1123

Next I went down to the local junk store and bought a nice big picture frame to hold everything in.

You're supposed to connect the panels together with something called "tabing wire". I found that solder whick works much better and costs less.

>> No.151019 [View]
File: 81 KB, 604x453, hole.jpg [View same] [iqdb] [saucenao] [google]
151019

>>150405
Spring break 2007: I stole a shovel from a groundskeeper and devoted ten days to digging a massive underground bunker in the forest by my dorm building.

>> No.150167 [View]

>>150127
There are methods of tricking and bypassing electrical meters; its a common trick among marijuana growers in my area because they need massive power for the lights in their basements.

Other people have brought up using the electromagnetic flux generated by power lines to induce an electrical current in an inductor. I've seen a few people do this; and they always neglect to realize they need a capacitor in parallel with their inductor to produce a resonance matching the frequency of the flux oscillation. Otherwise there is going to be a lot of cancellations.

Even with this suggestion I'm still highly doubtful harvesting energy from the power grid wirelessly is at all practical when compared to getting some solar panels.

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