Let's Make Robots!

RepRap Conversion for a set of Probotix SideStep Stepper Motor Drivers


An Arduino or similar microcontroller shall be used to create a RepRap-style front-end for the HobbyCNC EZ Driver board or similar DB-25 controlled stepper driver.  This front-end microcontroller application would allow RepRap applications to control a number of powerful CNC machines.


Check the purple wire first (a.k.a. "so that's how my computer died")

So the power on my CNC machine was going to come from a computer power supply, and I had a recently decommisioned computer lying around.  Instructables and other sites have some good instructions on "ATX power supply to DC"  and "ATX power supply to lab power supply" (search strings).  After wiring the thin orange to the thick orange, and the thick green to black, and a red wire to a "sandbar" load resistor, I thought it should be working.  After all the changes, I still did not even have 5V coming out of my purple "standby power" wire. 

My First Robot

Draft Robot Page: http://letsmakerobots.com/node/12713

My first robot is a Valkyrie CNC using TinHead's example: http://letsmakerobots.com/node/9006


Vector Drawings: http://letsmakerobots.com/files/clone_cnc_vector.pdf (draft)
Measurements will be available for these drawings by December 2009 or if somebody bugs me for it.