Hi Ángel,
We’re currently testing with marlin. We tried to control the motors with your modified grbl, but we failed to make the steppers with the mechanical reduction work.We can’t figure out which parameters to use for these steppers.We’re also looking on the default files and we don’t have a clue on what to do with that information (generic, shapeoko, shapeoko2). ;
Best regards, ;Thalles Machado