Newbie looking at 6040 (China CNC) for polypropylene 15mm sheet

[Zeeflyboy]

in reality you probably don't need to calibrate it.... if probing the inside of a hole for example, everything is relative so you will still find centre of the hole even if the measured dimensions were off.

Calibration is more of interest if you were measuring things for verification purposes.

[JOGARA]

0.03mm is the best I have gotten so far.
Finding it quite hard to get it any closer :/




Is there a way to get Mach3 to move a single step? 0.01mm is a couple steps on the stepper from the looks of it.
And how accurate is the mm readout in the interface? I would rather it move to the nearest 0.01mm rather than this...