[Bart] built a giant laser etcher from scratch. One of his first test engravings included the Hackaday skull-and-wrenches on a polished granite floor tile (we love it when people do that). He used an XMOS controller and Mach3 CNC software to handle the device. With just two axes to worry about this seem like an easy project. The difficult bit is controlling, cooling, and focusing the laser.  Oh, and if you screw up, you could be blinded, burned or horribly maimed. But if you start from the beginning you’ll see that [Bart] knows what he’s doing.

[Kajer] was doing some work with IP phones that use Power over Ethernet. While trying to get this to work with a network switch he decided to use PoE to power the switch itself. The best thing about this is he managed to shoehorn all of the necessary bits into the stock case. Those bits include a bridge rectifier, transistor, resistor, and a 5v power supply. Along the way he discovered he can now power the switch off of USB if he wishes.

[The Longhorn Engineer] is working on a portable Atari 2600. Instead of taking the old gaming system and cramming it into a portable form factor he’s designed his own circuit board in a new-hardware initiative he calls Project Unity. The handheld will include everything you need to play, including video, audio, controller buttons, paddle control, and a cartridge connector. For the demonstration, embedded after the break, he’s using the Harmony Cartridge to store his Atari ROMs but do note that the system is designed to use cartridges rather than work solely as a game jukebox.

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We’ll ask it again, why aren’t we building our own printers? We’re building 3d printers, CNC mills, and hacking the ink cartridges on commercial printers. What does it really take to build say a 300 dpi black and white printer? Something that lets you clean and service the print head rather than throwing it out when the ink reservoir is empty?

Someone has set out to answer these question with the Openprinter project. If this interests you, join up and start the revolution. RepRap had simple beginnings and maybe it’s time to take the army of self-replicating 3D printers and use them to print parts for 2D printers that don’t drive us crazy.

[Photo credit]

[via LostScrews]

There’s a warm place in our hearts for the original Nintendo Entertainment System. It’s too bad we don’t have that hardware sitting around anymore. But if you do there’s a chance it needs some TLC and there’s always room for a blue LED mod. [Raph] has a wonderful collection of NES hardware repairs and hacks that you should take a look at. These include replacing the power supply, fixing the cartridge connector, monkeying with the CIC chip, adding a reset button on the controller, converting the audio from mono to stereo, and yes, swapping in a blue LED. Oh, and as a side note, [Raph] gets a bit of extra hacker ‘cred for including “coded manually using VIM” at the bottom of his page. Classic.

Here at HackaDay, we are always a fan of a group of hackers coming together to create a place to share ideas, tools, parts, and stories. A group from St. Louis called Arch Reactor have managed to secure a new location, and are having their grand opening this Saturday. From 4-10pm on the 30th, they will be hosting an open house, and showing off both the area as well as some personal projects. We plan on being there to cover it, as well as support a hackerspace that is close to home for a couple of us.

They are located on the second floor of:

904 Cherokee St.
St Louis, MO 63118

and feel free to check out their location page, as well as their main web site.

Edit: Thanks to [kamikazejoe] from the Arch Reactor forums for pointing out the logo issue. Whoops.

[Hailrazer] is at it again with a new portable N64 build. He’s done the impossible by improving upon his last design. The LCD screen is now mounted flush for a cleaner and smaller case. The controls draw from a lot of different sources; a gamecube stick for durability, a 3rd party N64 controller for buttons, and a PlayStation controller for the shoulder buttons that serve as L, R, and Z (either hand). There is a breakout box that allows two controllers to be plugged in. Combine this with the TV out feature and it acts as a console or a handheld. His in depth demonstration is embedded after the break.

The build log (linked above) details every part of the hack so that you can try to do this yourself. The relocation of the expansion slot requires patience and solid soldering skills. The case work is an art in itself. We speculate that this commission comes somewhere close to $1000 but it’s hard to put a price on quality craftsmanship. We’ve seen smaller, but these features and finished look can’t be beat.

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We’re fans of pinch-zooming and that means multitouch. Although the interface is natively supported by both the hardware and operating systems of the Nexus One and Droid phones, it is locked out of the stock installation. You can make multitouch work on both handsets if you’re willing to do a little firmware alteration.

The coding has already been done for you, it’s a matter of loading a custom kernel. Both the Nexus One and the Droid have been rooted, and that’s what you’ll need to do to unlock multitouch with new firmware. In addition to gaining full access to the device OS, you’ll need to load up some different apps that support pinch zooming, etc. Luckily, these are readily available and you may like them better than the stock browser, maps, and photo applications.