CNC Shield V3
For board Uno and stepper motor driver A4988 or DRV8825
GRBL (open source firmware that runs on an uno that turns the G-code commands into stepper 37 signals).
PWM Spindle and direction pins.
4-Axis support (X, Y, Z, A-Can duplicate X, Y Z, or do a full 4th axis with custom firmware using pins D12 and D13).
2 x End stops for each axis (6 in total).
Uses removable A4988 or DRV8825 compatible stepper drivers.
Jumpers to set the Micro-Stepping for the stepper. (some drivers like the DRV8825 can do up to 1 / 32 micro-stepping).
Stepper Motors can be connected with pin Molex connectors or soldered 4 in place.
Runs on 12-36v DC (at the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the).