some cad drawings showing one of hextatic's pulley housings, and the semi-finished product
a "resynthesized" klimt painting...
a stick font engraving program, based on the hershey fonts
I made this metalworking lathe from scratch, using only a drill press, plate glass for a flat reference surface, and backyard foundry. It is in the process of being refitted with servo motors for CNC
me giving a demonstration of pouring aluminum into styrofoam "molds" which are vaporized and then burn off, leaving an arbitrarily shaped casting
a poor quality CNC foamcutter assembled from trash, and associated useless art objects
moth demonstrating computation in nature with its aerodynamic shape and cellular-automata-like markings, or silly human projecting on the world? your pick
I helped build and maintain a community accessible woodworking/welding/electronics shop, and garden
papercraft with Blender, as an example of computer aided manufacturing that anyone could do
ideas for clanking replicators or just cheap machine tools: hexegrity and a laminated pancake motor design
illustrations done in Inkscape for EMC2 of the basic machine types and interface cards
board layout done in Eagle for openservo.org's "call for entries" - I thought they looked sorta like faces
wrote the gait sequencing code for the tiptoes robot, which was a friend in Australia's project
CAM algorithms - offseting polygons (well, not really - it's difficult!) and a curve-length-parameterized spiral, which prevents path planning queue overflow at the center
a DIY "smart servo" with PID control running on an AVR in fixed-point, and printed optical encoder wheels
graphical representation of my "Guinea Pig C" lifelog data: blue is sleep, red internet, green food, yellow programming, etc
I was teaching a series of workshops on AVR microcontroller programming for the IU robotics club, and we needed lots of chip programmers. So I made some, based on designs from ladyada.org and modified for easier toner transfer etching. A circuit board assembly line spontaneously formed when I brought in the spare parts one day!