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General Mach Discussion / Stepper motors seem a LITTLE slow
« on: October 11, 2011, 12:33:15 PM »
Hi all
This may be something or nothing.
I have just converted a 7x14 mini lathe to two axis CNC. Everything works fine but when I increase the jog above 5% the drives start to loose steps and grind to a halt.
If i'm set to 5% and below everything is fine.
My config is as follows:
3.06Ghz processor.
TB6560 driver card. DIP switches set to 75%, FAST, Half step.
57BYGH603 stepper motors. 1.0amp 1.8 step angle 14.5 kg.cm running at 24vdc.
Using this information I have set the Mach3 steps per unit to 4000 which gives me the correct travel as per the DRO.
I have the step/dir timing set to 1us.
I have the acceleration set at 0.6 seconds and the velocity at 200in/min.
The kernel speed is 60,000hz.
Any help would be appreciated. It might just be that my motors are not man enough to go any faster which is fine as I can work with it as it is.
Cheers
Phil
This may be something or nothing.
I have just converted a 7x14 mini lathe to two axis CNC. Everything works fine but when I increase the jog above 5% the drives start to loose steps and grind to a halt.
If i'm set to 5% and below everything is fine.
My config is as follows:
3.06Ghz processor.
TB6560 driver card. DIP switches set to 75%, FAST, Half step.
57BYGH603 stepper motors. 1.0amp 1.8 step angle 14.5 kg.cm running at 24vdc.
Using this information I have set the Mach3 steps per unit to 4000 which gives me the correct travel as per the DRO.
I have the step/dir timing set to 1us.
I have the acceleration set at 0.6 seconds and the velocity at 200in/min.
The kernel speed is 60,000hz.
Any help would be appreciated. It might just be that my motors are not man enough to go any faster which is fine as I can work with it as it is.
Cheers
Phil