A backlash setting in the software that too high will cause that.
Huflungdung is correct if your machine is missing steps in one diretion it will act like it's going too far in the other.
As far as closed loop steppers, my machine is open loop and doesn't miss steps. If it's set up correctly you can run all day without missing steps.
What software do you use?
Eric
__________________ I wish it wouldn't crash. |