[formathirn] sent in his latest project, his Beatbox 2.0. He was kind enough to write up an instructable (Don’t whine about it, they’re giving away a friggin $6k laser etching machine.)
It features a 600 watt amp, four internal mid/fullrange speakers and it’ll run external subs, if you don’t mind carting them around. He used some p3 heat sinks to reduce the space needed by the amp and fit everything into an old ‘Grundig Bandmaschine’ case. For extra bling, he put used fiber optics in the side.
DIY Camcorder
[Jonas] sent in a surprisingly retro concept given the number of small cheap funky video recorders on the market. He built his own. At the heart is a sony Digital8 recorder, combined with a security camera and a SLR lens. It’s finished out with an LCD viewfinder and a handful of AA batteries to power the security camera.
Heat Pipe Wine Chiller PC Cooling
[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.
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.
