An alternative design for the RepRap Darwin Z endstop. It allows the machine to home the z-axis away from the workpiece, so that homing is always a safe operation, regardless of what state the machine is in. More details in my blog: hydraraptor.blogspot.com/2008/08/alternative-z-endstop.html

This version is for 1/8" thick acrylic, rather than 1/4", and half the height. A single 12"x12" stock will get you two complete nave sections, i.e. eight times the Gothy goodness of the original.

Isn't multiplication fun?

A calling card with working planetary gears. Astound your friends, frustrate your nemisii.

(Update: I've moved the gears slightly to the right, reducing the number of cut parts to assemble.)

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.