Tag Archives: cnc

grbl_mc for 250W Brushless Spindle

Got me an ER11 brushless spindle from aliexpress … Quite nice, silent and powerful .. Had to modify the grbl_mc firmware switch to 0-100% pwm break out EN and DIR pin also break out coolant pins start storing (and managing) settings in eeprom remove ESC startup code

enhancing grbl 0.9e

Currently i’m testing a modified version of grbl 0.9e dev. My modifications include: i2c control for spindle (coolant currently disabled) grbl status via blink code of arduino LED homing will set coord to 0,0,0 (and not -offset) tool table support for diameter and xyz-offsets softlimits respect tool z-offset for usable space Things seem to work… Read More »