grbl_mc for 250W Brushless Spindle

By | 5. February 2017

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

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