Sounds like you may have your motors stalling, are they making a noise when they have stopped? If so drop your velocity and acceleration way down and see if that helps. If it does then start increasing the velocity until it stalls again then drop down a good bit then increase the accelleration until it stalls again then find the happy medium between velocity and accell.
Hood
You are right Hood, I did what you said and now all is good
My velocity is at 81 in/min and acceleration 9 in/min. Kind of slow when I jog but motors are quite and smooth
Are the above numbers average, good, bad ?
Also noticed that if I keep my finger on the keyboard arrow button the axis travel in one direction and if I lift the finger and press again the same arrow button the same axis travels in the opposite direction.
Still a heck of a lot to learn but I will take one at a time
Much appreciated
Nicolas