Hi there,
I am using the Z pulses to drive a laser TTL trough a micro. So I really do not mind about how fast the Z speed is because there is no motor connected to it and I need it fast..
I have set x and y at 15000mm/min (that's my max speed on these axis) and Z at 50000 mm/min. When I run the gcode with a feed rate of 1800 mm/min I expect z to be so fast that should not slow down xy.
I do not know why but z is slowing xy and it is running at merely 500-800 mm/min.
The situation does not change if I increase the feedrate. Mach3 is running at 75 kHz so this shlould not be the issue either. The Z acceleration is also very high (10000) so neither this is the issue.
I have tried different gcodess produced with different cam software but still, despite the settings, Z is slowing down XY which I can hear stepping all the time. I have set constant speed but the machine sounds like the gcode is running in exact stop.
I have attached the gcode I am using for the above test. As you will see the Z movement are from 0 to -1 mm so at the speet I have set the Z, I am not expecting xy to slow dons or to step..
Is there a setting to detach Z speed from xy? Any hint?
Thanks for helping,
Felice