Machsupport Forum

Mach Discussion => Mach4 General Discussion => Topic started by: momofr83 on February 03, 2026, 10:38:42 AM

Title: MACH4\pokeys57 : Controlling PWM to laser engrave in greyscales
Post by: momofr83 on February 03, 2026, 10:38:42 AM

Hi,

I have a pokeys57cnc and mach4 and would like to control a laser with PWM to engrave images.

A few years earlier, I used Auggie. It was fine but not very user-friendly.
I saw a bit of developments coming from pokeys's developers and I thought they might have implemented new ways to control a pwm and bypass S commands breaking constant velocity.

I saw somewhere a way to use an arduino nano to take step/dir signals from a motor and convert it as a pwm signal for my diode. But with a 150€ cards, isn't that possible ? I tried M62/M67 with no sucess.
I would like to avoid the nano solution or change my card and therefore settings.

Thanks,
Alexandre

Title: Re: MACH4\pokeys57 : Controlling PWM to laser engrave in greyscales
Post by: momofr83 on February 03, 2026, 04:32:06 PM

In the changelog of the pokey plugin for mach4, it says :
9.06.0.5325 (28.3.2024)
- Support for M67 (analog motion-sync commands - e.g. laser PWM control) - M67 E0 Q100 (only Analog output 0 is supported)

Does anybody know how to make it work ?