carving issues-UNSOLVED

[woodworker]

Think I will get murdered by the Mrs if I skipped it lol, the control box is a Rhonmac not sure on controller cards etc all in a nice neat box, I have noticed that when I jog the motors usually first thing they just make a noise and dont move obviously if this happens mid cut it would cause my issue, but so far I have been unable to hear the noise when its all running. I'm wondering if its to do with the speed I have it set to?!!
not really sure if the settings are correct my machine info is 1600 steps 8 micro steps 15 motor teeth leadscrew 30 leadscrew pitch 2mm expect this means something to somebody. Mach 3 is set to steps per 2000 velocity 438 acceleration 187.5

[cropwell]

It could be a motor stall problem. Try reducing the acceleration, you can always set it back up if no difference. Your Mach3 steps per looks wrong. I am very tired at the moment, so if anyone would care to check my calcs please let me know if I am out.

Motor has 15 tooth pulley, Leadscrew has 30 tooth pulley (I would have expected this to be the other way round - but no matter)

2:1 pulley reduction
2mm pitch leadscrew means axis moves 1 mm per revolution of the stepper, ie 200 steps, 8 microsteps means 1600 pulses per rev, i.e. mm.

So steps per in Mach3 should be 1600 not 2000.

Have you done any dimension tests yet or has your current problem overshadowed things ?