I have a problem with "Cycle Jog Step". It is set to 0.0100. The first click on the arrow moves the axis by 0.0100, the next by 0.0050, then the next by 0.0150. So sometimes I have that error of 0.0050.
The same thing happens to me when engraving. For example, the depth of the z axis is set to 2 mm and it ends at 1,995.
Can this be corrected somewhere in Mach3 settings?

https://www.youtube.com/watch?v=DVDizysSpRs

Thanks in advance

That sounds rather bizarre. Make sure the mechanical system is correct, because if there is any mechanical problem the motion system will not correct for it. Is this motion showing up on a DRO or on an indicator?

I'm sorry I'm a beginner. I don't know what a DRO is?