trying figure out how to set up a custom plasma table. i have open build controller x32 4-nema 23 motors, rack and pinion x and y drives and ball screw z axis. trying to figure out where to put in gear info to be able to calibrate to correct measurements.
The Grbl Wiki is a must read that explains the settings https://github.com/gnea/grbl/wiki/Grbl-v1.1-Configuration
you don't need to know the gear ratios..... Just put in 1 for steps/mm then command a move of 1600mm (200step per rev * 8 microsteps, default for BB), G1 X1600 F1600 that should turn the motor 1 revolution over a minute. Measure how far the carriage moved. now you can calcuate steps/mm using newstep/mm = currentstep/mm * commanddist / actualdist newsteps/mm = 1 * 1600 / distancemeasured set the steps/mm to that value (do and X and Y the same) , reset the BB and then refine the value using the calibration wizard in CONTROL.
