Very good point John, thanks
ESS General Config doc has the spindle set at 32 KHz and in the spindle PWM section it is ticked and has Base Hz 300. Then in ESS Spindle THC & Laser Config it has in the PWM section a base Hz of 1000. In addition in the Mach3 Engine Config Ports and Pins the ESS doc under spindle has no selection for Step/Dir Pin# neither for Step/Dir port. And in the same ESS doc under the Motor Tuning and Setup has both the Velocity and Acceleration slides set to Max (which I think it’s wrong).
Since this is the first time I get hands on experience with the ESS I can see a problem setting the right frequency between ESS and Mach3 for the spindle. If you have any suggestion I’m open to give it a try.
Besides the above I don’t know which pin to use for Output#1. Most say to use pin#17 but this pin is used by the SCHP. So this is another confusing part.
Reading my notes I have from other projects I set the Velocity/Acceleration in the motors tuning half way up in the scale and on pulley #4 I set min speed 1, max speed 5000 and ratio 1. Now by using M3S5000 I get about 8000RPM on the spindle (its belt driven) and I can also see on the Mack3 screen the same spindle RPM (about 10% less). That’s pretty good and perhaps by trying I can get even higher.