#11 Spindle rpm increase or decrease whilst running threading

[Goatofmendez]

The spindle increases or decreases by 1rpm per cutting pass on some threads but not on others - should it do this?

[stephanbrunker]

That is a issue of Mach3 and not of the Gcode. If you have the extended threading diagnostic active, the true RPM is displayed on runtime and the RPM is a closed control loop based on the spindle index and the Z speed.