What is your threading TPI on the lead screws. In addition, have you tried different stepping rates (1/2 or 1/4)?
I have the HCNC Pro Rev 1 board (basically the same as yours + Idle Current Control). I currently use 1/2 stepping with 10tpi acme threads and have not noticed any similar issue. As Dave noted, you are approaching the point on the spiral where the movement on a given axis is at a minimum. With the full step and a low thread count, you might be encountering a detent on the motor perhaps? Brian ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
