Day: August 14, 2009

Building An Apple 1

August 14, 2009 by 22 Comments

replica1 (Custom)

With all the recent talk of hackintoshes going around, we thought we should post this oldie. It is a writeup on how to build your own Apple 1 called Replica 1. If you’ve got the $149 laying around and think you can handle the construction of a mere 88 components, you can make one yourself. Not only can you order kits or complete units, they even have a download page with applications and games. It might be fun to have one of these sitting on the desk right next to our minimac. If you really don’t want to buy one, but maybe want to just play a little bit, there’s always virtual apple.

[via DVICE]

Solid State Tesla Coil

August 14, 2009 by 9 Comments

pano

While researching solid state Tesla coils we stumbled across this old project. As you have probably guessed from the pictures, this coil is meant to actually play music. Knowing how to add eye catching flare, the coiler uses a Plexiglas frame turned light pipe; only to be complimented by an audio amplifier complete with graphic equalizer. There is a video of the coil in action on YouTube. We have covered singing tesla coils in the past. Other twists on the classics include the tesla coil guitar amp and a hand held plasm gun.

Home Built Delta Robot

August 14, 2009 by 39 Comments

[youtube=http://www.youtube.com/watch?v=7bQRXfLwBgU]

Theres an interesting thread going on at RoboterNetz.de (translated) about building delta robots. For those who haven’t seen delta robots before, be sure to check the video after the break for some really impressive agility displays. A delta robot usually has 3 arms connected to a single point at the end. This configuration allows the end point to maintain its “level” while the whole unit is moved, usually very quickly. There are a few people building them in this forum. The one pictured above is [Asurofilmchen]’s version, but you should also check out [Radbruch]’s posts of a robot made by [Jamison].

Continue reading “Home Built Delta Robot” →

Logging Weight Changes

August 14, 2009 by 16 Comments

scale

This is a classic example of a well done hack, simply for the sake of hacking. [Jorge] wanted to be able to chart his weight changes.  His solution wasn’t to simply buy a scale that could be hooked to the computer. Those are available and aren’t really that expensive. He could have even used pencil and paper to chart it in a few seconds. Instead, [Jorge] started hacking. He took apart a digital scale he already had and installed his own circuit to display weight and write the values to a CSV. The CSV resides on a removable card which can then be put in his computer to chart the data in openoffice.