[Gordon Johnson] sent in one of the odder active cooling mods I’ve seen. Initially he planned to use lots of pennies to create the heat pipe, but ended up using some copper pipe with some pennies tacked on to mate to the cpu. The pipe carries the cpu heat from the case into a… wine cooler. Judging from the size, I’d guess that the cooler is one of the peltier variety. To see the final creation, I had to go through the slide show youtube video.
Author: Will O'Brien805 Articles
Dammit We Missed A Day Extra
I finally ponied up for an ev-do card to make sure that I have no excuse for missing a post short of being trapped in a hole by bizzaro superman.
Check out this short video how-to on making your own glow in the dark inkjet ink. via [boing boing]. Probably the best inkjet mod since the diy cd printer.
If you remember the diy ups, you might like the attach a giant battery to a stock ups version. I did this myself years ago. It works well, but use a maintenance free battery to minimize hydrogen off-gassing. In fact, I’d suggest some proper ventilation for the battery pack. Miata batteries have a vent tube if you want to keep the parts count to a minimum. (but they are a bit pricy)
Something a little oldschool – [Alexandre] added a serial port to his newton message pad 2000.(Not in english, but easy enough to understand.)
After seeing the superglue fingerprinting post, [Anton] sent in this fingerprint falsification how-to from the ccc.
Adding Internal Bluetooth To Your Tablet/laptop
This one reminds me of [sprite_tm]s keyboard light mod. [Jeff] modded a usb bluetooth module and mounted it internally on his tablet. He connected a small circuit to two the the stock buttons to buffer/de-bounce them to allow simultaneous pressing to activate/deactivate the module. (To add a delicious taste of irony, my bluetooth module was flaking on and off while I read and wrote this up.)
Handy Bench PSU’s
I thought everyone was going with cheap PC based power supplies(I did), but some people just have to take it to another level. [andrew] built this bench PSU with -12V, -15V, +5V, +12V, +15V, variable and one +35VDC unregulated output. He based it on this design, but added a few tweaks of his own.
Yes, Hack-A-Day took a bit of an unplanned hiatus on Saturday, but I’ll have some extra stuff for you this week as things return to normal. If you’ve got something interesting, use the tips line.
Blame Bluetooth
Saturday, somewhere in west virginia, the bluetooth card in my laptop keeled over. The result? No internet access in my car, so there was no Hack-a-day yesterday. I’m back online now, and I’ll try to dig up some extra stuff this week to get things back on track.
Superglue Fingerprinting
Just a fun one right out of Beverly Hills Cop. [Sam] sent along this handy how-to for obtaining finger prints with CA adhesive(superglue) fumes.
DIY Digital Voice Transceiver
[dk] sent in the DVX project. It’s a complete D-STAR implementation that’s built around a digital transceiver chip, an ATMEL mcu and a digital voice compression chip. Compared to most digital radio’s I’ve seen, this one is pretty simple. The really complex action lives in the main chips with a bunch of caps and resistors to support them. Watch out for Digikey’s pricing – it looks like a major gouge after looking at the tx/rx chips on Analog Device’s site. If you get them at a decent price, they could make great rf links for your projects. The link to the paper seems a bit broken, but here’s the correct one.
