It's Here! Chris Odom's Physical Computing & Robotics with the Arduino IDE - Volume One

CNC Acetal arm kit.

$40.00

Already have a pile of servos? This kit will need 4 of 'em. 

The cuts are made for the square Hitec arm. So if you want to use another servo you will have to carefully cut one of those round servo hubs into a niffy square one....and you'll have to do it 4 times. 

Instruction manuals can be found here: