The machine is normally set as following (with the Z motor connected):
X and Y are set at 500 steps/mm, 20000 mm/min acceleration 500
Z is set at 500 steps/mm, 10000 mm/min acceleration 400
With the above setting I use the machine for normal operations
When I connect the laser instead of the Z motor, I change the Z settings as following:
250 steps/mm, 20000 mm/sec, acceleration 100000
In such configuration I do expect Z to be so reactive that XY are not affected by the Z changes which are from -0.3 to - 0.8 mm
Instead I clearly see the machine slowing down on the DRO for each Z change and I can clearly hear the ugly noise of a machine stepping all the tiime. You can get a feeling of the noise here:
https://www.youtube.com/watch?v=jUVU17ks89YI am trying to get the machine rastering smoothly but I cannot achieve it.