If you like to freak out your neighbors, you’ll love this one. [jake] had a run-in with allergies in his wood shop, so he built his own positive air pressure respirator. He used a surplus gas mask, scsi squirrel cage fan, and an automotive air filter. My old TDI VW Beetle used an activated charcoal filter for the cabin – I’d suggest one of those for more effective air filtration.
Laser Power Meter Sensor
I signed the papers on my first house today! In celebration, I started looking for some home hardware hacks, but stumbled across this old (2003) laser power meter sensor. If you like to scare off the power guys, this is the way to go. [jake] used a laser pointer, probably a PIC and some sort of photo sensor to count the revolutions of his meter.
MB-6582 – DIY C64 Based Midi Synth
![MB-6582 by [wilba]](http://hackaday.com/wp-content/uploads/2007/05/mb4685-had.jpg)
It’s been a while since we’ve seen one of these. [vscd] sent in the flikr stream showing off the gorgeous MB-6582, built by [wilba]. It’s a diy midi synth that’s based on the midibox platform. It uses … synth chips to do the dirty work, and some PICs, a little CMOS hardware and a C64 PSU. He even anticipated some future versions of the midibox project to complete the design. This is one of the nicest DIY builds I’ve seen in a while – just beautiful work. Check out the build notes on the wiki page.
TinyProjector: Mini POV Laser Projector
I found [Stefan]’s work through his older, but interesting TinyProjector project. He opted to use multiple diodes in various configurations with rotating mirrors to create images. He’s built quite a few interesting projects over the years. The WeatherTank is pretty sweet.
How-to: Make Your Own XBox 360 Laptop (Part 3)
[Ben] finally got part 3 of his XBox 360 laptop how-to finished up. This is the final piece of the series. He spends it covering wiring up the ports, buttons, keyboard and final assembly. There are plenty of shops that handle special order laser cutting – so don’t begin to think that this sort of project is out of your class. If you’ve ever built a model car and can handle a soldering iron, you can definitely build one of these on your own.
I was just checking for this final piece this morning – but props to [Tony] for noticing it first.
Fonera SD Card
[Jkx] sent in his fonera SD card experiments. It looks similar to the wrt54g mod – bit banging the interface works, but it’ll be slow. I poked around [Jkx] site and found quite a few goodies. (We’ve noticed his He’s built a nice tube amp, but his push-pull tube amp looks very interesting. Oh, and his simple negative power supply could prove handy,
Forced Air Laptop Cooling
We’ve seen some exotic laptop cooling solutions before. This one caught my eye for one reason – I’ve got an e1705 myself. (Complete with chipping media button paint). It’s not the most stylish, but [WhiskeySix] combined some PVC pipe and an adjustable high flow fan to give his dell a major airflow upgrade. I’d like to see one built that mates to the exhaust ports on the rear. Sure, it’s not pretty, but he was able to increase his frame rate by 50%. Thanks to [Wimpinator] for the tip.
