Well I have it all wired up...loaded the firmware I think I got everything tweaked for using a thermister, stepper motor on the extruder and a min and max opto on each axis. I plug everything in go through all of the steps to run the host software in Windows 7 and I have no extruder stepper control at all, x and y only move forward. Z doesn't move at all, and if it sits long enough the z axis twitches.....oh and one of the optoendstop jacks on the y stepper board lights up the endstop it is plugged into. This is all gen 2 electronics they were all tested after they were built and passed inspection....I'm a little overwhelmed as to where to start. Oh and teh extruder heats up. Any ideas? I'm think ing part of the problem is firmware, and part is flakey host software running virtually through eclipse. Thoughts?