The MeArm is an Open Sourced Robot Arm. It's small, like pocket sized and that's for a reason. It can be cut entirely from an A4 (or more accurately 300x200mm) sheet of acrylic and built with 4 cheap hobby servos. It's live on our site for about $35...
A bendulum is topped with a weight. If you give the top a push, it sways back and forth periodically. The motion is much like a pendulum, except that instead of swinging rigidly from a pivot and moving the most at the bottom, the bendulum’s stem flexes...
I bought an XMS amplifier from a friend years ago and although it was serving it's purpose I got quite frustrated with having to toggle the loudness feature every time the input was changed. This was the beginning of what has now become my network enabled...
So, where I stand now. I ended up using a Mesa 5i25 PCI card and a 7i76 step/dir control card. The Yaskawa servos have pretty good auto tune so I decided to leave the PID loop up to the servo drives.Speaking of servo drives, that and the servo motors...
I picked up the vacuum system from Portland State two weeks ago from a professor I know. It was too big for the little things they do and by the time it warms up and pumps down there is no time left. So they decided to get rid of this system and build...
14.03.2014. I must admit that I was partially wrong. We just tried a more powerful stun gun 800,000 volts. We installed two sewing needles on it and pierced the carbon tape. On the needles remained voltage of about 150 volts. The person will feel the...
Media artists often need to play multiple videos on multiple screens in loop for long time. Often they also want to play all videos synced (i.e. all of them starting at the same time). Having one device (for example a computer) playing all videos requires...
In the original configuration, the airswimmer is propelled by the tail fin, which can be flapped left-to-right using the remote. The whole fish can also be tilted up or down by moving the gondola, which holds the battery and receiver, forward and back...
IntroductionVaporization is done by off-the-shelf ultrasonic atomizers, either really cheap ones (the black ones in the picture below, 2.50 $ each) or some more rigid ones (the silver one, a Fogstar 300, 290 € each), air is moved by an array of...
I've been busy with other projects, summer and the day job, but here's an update on the Pinstax. After weeks of perking this project through my brain, I enjoyed some frenzied productivity as ideas came to 3D printed reality. One of the problems...
The idea behind this project was for my sons birthday party. He wanted a robot themed party, so I figured this would be the easiest to build. Similar to the commercial claw machines, the idea is to grab a toy and successfully get it transferred over...
This HOW-TO explains a quick and easy way to speed up NetBSD pkgsrc compiling on retrocomputers. It was written because there are altogether too many distcc how-tos which are complex, require special build environments or make assumptions without explaining...
4 voice (Bass drum, snare drum, open hat, closed hat) analog drum machine originally controlled from an Android device via IOIO (microcontroller) thanks to MackeMints (http://projects.hackaday.com/hacker/812) pro programming skillz.Version 2 is under...
For my GPSDO project I’ve opted for a Piezo 2940210 VCOCXO at 10 Mhz. There is a dearth of information on this particular module available online.(A notation notation: I utilize “E” notation to indicate orders of magnitude; thus 1.5E-6...