Engine Configuration. Ports & Pins – Spindle Setup


Mach3 Spindle Setup

IMPORTANT! You need to set PWM Base Freq between 5 000 and 10 000 Hz. Setting lower frequency value (e.g. 1000 Hz, 10% duty) is incorrect because laser is turned on at maximum power only by 0,1 millisecond and turned off by 0,9 milliseconds. As a result, power of laser is not averaged and cutting (engraving) line is dotted with long pauses especially if engraving speed is high.

Mach3 Spindle Signal

If you set higher base frequency, for example 10 000 Hz and the same duty, laser is turned on at maximum power 10 times per 1 millisecond. As a result, power of the laser is averaged and cutting (engraving) line is homogenous.

Mach3 Spindle Signal