RhinoScripting for 3D CAD

My housemate Moon Duchin is interested in 3D printing these shapes that she studies. (She’s a mathematician.) The technical name for the shapes would be spheres of radius 1,2,3 in the Carnot-Carathéodory metric on the real Heisenberg group induced by a hexagonal norm. It’s a mouthful. I’ll probably do another post describing how to come up with the shapes. Anyway, she’s actually already had two … Continue reading RhinoScripting for 3D CAD

Peristaltic Pump

I have designed and built some peristaltic pumps for pumping cyanoacrylate (i.e. super glue). The stuff is about as viscous as water, and I want to dispense it in tiny drops. Peristaltic pumps are perfect for high pressure, low volumetric flow systems, plus there is the added bonus that you can easily replace the tubing if it gets clogged (i.e. the super glue dries out, which … Continue reading Peristaltic Pump

Steer Roast Commemorative Coin

Some friends of mine came up with the idea of making a commemorative coin for the 50th anniversary of Steer Roast, so I’ve taken up the project with a lot of zeal. I’m working on stamping brass coins myself. The idea is to CNC mill designs into steel, harden it, and hit it really hard with a circular brass lug in between. We may have … Continue reading Steer Roast Commemorative Coin

Mushroom Chairs

A lot has been going on! I’ll give each project it’s own post. For Steer Roast, an annual alumni event held at MIT’s dormitory Senior House, I’m making some mushroom chairs. One might say, toadstools. I designed them with Sara Falcone; our conception was lasercut 1/4″ wood slotted together that would sit over a trashcan. Woodglue everything together, cover in batting and fabric, and there: … Continue reading Mushroom Chairs

Small Walking Robot

I’ve been wanting to make a walking robot for a while and found this awesome 3-servo design in Make magazine: http://blog.makezine.com/2011/10/20/how-to-three-servos-walking-robot-video/ It’s very simple and appears to walk with a shuffling motion, kind of like a duck. It’s a pretty clever design: basically a flexible parallelogram that is rotated by a servo. The parallelogram acts to move the legs up and down. Each leg has … Continue reading Small Walking Robot