This is a new and improved version of my pinch wheel filament extruder design for the RepRap project. It works pretty darn well, and I'm quite happy with it. More details coming soon.

Parts List:
1 x Lasercut Parts
1 x M8 x 30mm socket cap screw
1 x M8 nut
4 x M8 washer
3 x M3 x 50mm socket cap screw
4 x M3 x 40mm socket cap screw
2 x M3 x 18mm socket cap screw
6 x M3 x 8mm socket cap screw
1 x Skate Bearing
1 x 2" washer
15 x M3 nut
9 x M3 washer
4 x 7/16" plastic spacer
1 x Heater barrel assembly
1 x Kysan 1156006 DC gearmotor
1 x Magnetic Rotary Encoder v1.x Board
1 x Extruder Controller v2.x Board
2 x 5mm LEDs
1 x 1K ohm resistor
various wires / etc.

What it is:

A little contraption that allows you to flick a light switch on and off under the control of a micro-controller.

What it does:
You can see a video of it in action here:
youtube.com/watch?v=P0hBCdMJ96g

These are the plans for the parts that may someday replace the popsicle sticks on my robotic arm! More info at brepettis.com/blog/2008/11/24/things-popsicle-stick-robotic-arm/.

This is a 4-pin tumbler lock with a key and display case. Insert the key and turn clockwise to get a smiley face!

This is the skeleton for a basic pentapodal robot.

I'm currently using cheap HS-311 servos for all joints. These don't really provide enough torque for the up/down shoulder joints as currently designed. I plan to shorten those members, and get more powerful servos to support them.

This is a model of the classic pulp SciFi rocket, which takes the hero, the sidekick and the romantic interest, to the stars!

For something that fits in a 12"x12" sheet, this thing will tower nearly 15" tall, overawing any primitive aliens you are likely to meet. Well, the shorter ones anyway.

Heavily inspired by Herge's Tintin comics, which are a must read.

This is a vector file for cutting chess pieces on a cnc machine or laser cutter.

This is the Sanguino board. It is an Arduino compatible board based on the atmega644P. This page will tell you how to assemble one, probably from a kit that you bought somewhere. Once you are done, you'll have a sweet little board you can use for prototyping, hacking, or even for a permanent project.

The Sanguino has some awesome features like:

* 64K of flash space
* 4K of RAM
* 2K of EEPROM
* 2 hardware serial ports
* 32 GPIO pins
* 6 PWM pins
* 8 analog pins
* I2C, SPI, etc.

The other day while hacking at NYC Resistor, I realized I was getting a crick in my neck sitting hunched over at my laptop. I needed some sort of laptop stand to get the screen up higher, and one that I could get my external keyboard under so my computer wasn't too far away. I'd never seen exactly what I was looking for, so I figured I'd whip one up!

A little while later, with some help from Inkscape and our Lazzzor, I had this laptop stand.

Because the stand is made from 3 flat pieces which you can take apart, it's extremely portable and light.