The problem is not getting PWM, many boards offer a PWM output, the problem is always getting
the PWM to change during motion based on a photo. This requires the CNC program to deal with either
a photo or a data-file representing that photo. This is not a normal thing for a CNC program to do,
it requires handling data in realtime that a typical CNC program doesnt like to do, its busy enough
doing the motions and GCode translations.
Mach4 will do it with an ESS , the capability is in the ESS's driver as Greg was kind enough to add
that capability for Laser users. Auggie will do it because it was designed from the start to control a
laser.
You will find with lasers general CNC programs are difficult to coax into doing laser engraving of
photos just as Auggie is difficult to coax into doing normal CNC milling work. It can do so , but its
primary purpose is Laser.
Luckily, if you wish to do any normal Milling , the PoKeys will work with Mach3 or Mach4. Auggie is
a free program so its just a good thing to have in the toolbox if you have a Laser capability on a
Milling type configuration.
Art