Originally Posted by gleas  Hi All,
I am trouble shooting a problem with the spindle speed control on my NM-135. It's a Revsion 2.1 but I think the Revsion 2.0 also use the PWM spindle control.
We, that is Novakon and I have been swapping boards and cables so I'm thinking it could be in the Mach3 config settings. Unfortunately I didn't back up my working XML file and would like to see someone else s for comparison.
The other night, I did a spindle calibration in Mach3 and since then the spindle goes in forward/reverse but only at full speed.
Any input or current working XML's would be greatly appreciated.
Thanks, -Greg |
I can get you my 2.1 xml later today. I was fiddling with mine - I had to set the PWM base frequency (Config->Ports/Pins->Spindle) to 1000Hz (which contradicts the mach3 documentation, which says set it around 5 or 10, and caused either off or fullspeed spindle operation for me) and min freq to 0%. After that, gcode "S" commands seem to work, numbers between S800 and S7000 will change the speed (S7000 will run the spindle faster than S6000, despite it being a "6k spindle"
). I don't have a tach to calibrate though.
I have to CD300 (cheapo) controller.