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Are you pressing reset while in motion. If the machine is moving, press pause, then stop. Then, it shouldn't lose position.
The loop is closed to your drives but at this point Mach is not in the loop. Sorry I didnt see the first part regarding the reset before, how much is it loosing when you reset?Hood
How many encoder counts would that equate to? Seems to me that if its such a large amount then it must be a force of some sort acting on the axis and moving it when disabled. I use a SmoothStepper and have noticed by monitoring my drives software that pressing the reset can lose position but it is only by 1 or max 2 counts of my encoder which equates to 0.00125mm maximum. I have put that down to my drives being disabled and the belts relaxing slightly. I always rehome after I have reset but in reality it would be a lot of resets before I am out of position enough to worry about. If however I had a slantbed lathe then the chances are the axis would move further when the drive was disabled (due to reset being pressed) so at this time the only option would be to rehome after a reset.Hood