Hello there. I'm testing the control modules and the step motors and found the two i plugged in so far are running funny, check the vid:

[www.youtube.com]

I loaded the test program. If i test the steppers on each connection, works fine. I believe there was a misconnection in one, pressed a little bit, solved. Now i try both at the same time, and what's on the vid happens.

Tips?

Thanks!

The fault were lousy connections to the pololus.