Friday, 25 November 2011

Next project: Meeples with heart

Katie and I enjoy a good game of Carcassonne but the basic set has no purple meeples, a big omission (according to Katie anyway)!

This Shapeways meeple model, personalised with a heart should do the trick...

Purple meeple with heart

Thursday, 24 November 2011



Happy holidays!

I made this hexapod with my laser-cut wooden construction kit and a bunch of M2 screws. I've shared (CC license) the plans for the construction kit on Ponoko

Construction set: rods of various lengths

Construction set: angle brackets with T-slots for M2 screws


ArduRoller out for a spin

Second iteration of my ArduRoller balance bot with an all new wooden chassis.

  • Chassis: laser cut 2.7mm bamboo ply (Ponoko); various M2.5 machine screws from Amazon; Instamorph low-melt-point thermoplastic to fill in the gaps.
  • Brains: 1 x Arduino Uno
  • Motor driver: 1 x Sparkfun Ardumoto
  • Motors: Sparkfun 2 x 24:1 gearmotor
  • Wheels: 1 set Sparkfun 70mm -- repaired with Instamorph after they cracked around the axle
  • Gyro: 1 x ADXRS613 (Sparkfun breakout) mounted at the axis of rotation
  • Accelerometer: 1 x ADXL203CE (Sparkfun breakout) mounted at the axis of rotation
  • Batteries: 2 x 3.7V Li-poly 850MAh (Sparkfun)

I've shared the code and assets at

Video is at