Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I am now in the process of configuring my CNC phase of my multufunctional machine (3d printer, laser, cnc, etc.). Is it better to use a fan output (M106) rather than a heater output (M42) to control the speed?
You can use either, it makes no difference apart from how you configure it.