2016 May 20th. New Mach4 ESS plugin video showing how to set up the Spindle in PWM mode with Forward and Reverse. I replaced the one made the day before to clarify some points that were causing questions and confusion.
Get it here: http://warp9td.com/index.php/gettingstarted/setting-up-the-smoothstepper-and-mach4
Just to be clear: If you want to run your spindle in reverse when issuing 'M4 S15000' commands, you will need to add a "SPINDLE Rev" output also.
