Clublog

Monday, 19 January 2009

CNC Mill update

Just won flea bay auction for 5 type 23 stepper motors. 2 more than need so will use them for an alt-az controller.

Figuring out the controller now as these are bipolar motors.
http://home.cogeco.ca/~rpaisley4/Bipolar.html#PCB
Seems the most likely candidate with some pass transistors to sink > 1.0 amp on the outputs.