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General Mach Discussion / need help with steppers

« on: January 29, 2009, 03:38:08 AM »

Hello, I have a homemade CNC machine with a controller I purchased a year ago from cncresource.com it is based on a geom mcu and is setup to control 3 axis. It came with its own mach 3 config. It's supposed to be plug and play ha. However when I purchased it I upgraded to the 200 oz in steppers, I basically have locked motors, they chirp and alternate between making noise and quieting down when I hit their axis jogs but they do not turn. The config they sent me seems to be ok but i don't know if they are wired correctly or maybe they are getting too much current. They have gone out of biz and I have to way to get direct support. They are 30v 3a 8 wire bipolar nema 23 200 oz steppers. I have read thru most of the posts here and have tried all the config and tuning steps ad naseum. I think I'm down to current and wiring. I just don't know how to troubleshoot this. thanks for any help.

Hank