I just bought a UNO board and CNC shield for fun. I am wonder what benefits moving GRBL would give me?
I know that it already has support for PWM with out having to remap pins. It would also allow me to shade 3d reliefs with the use of PEP5 (which i own). Would allow spindle control when I switch to a spindle.
Are there perhaps other speed benefits or anything like that since it is a CNC based solution? I have had to switch to using my SD card for wood burning as repetier host cannot process fast enough.