This is a personal fork of the original Marlin firmware, extended and configured to work with the eShapeOko router (with enlarged working area):
- Usable work space: 32 cm x 80 cm
- Second Y axis motor is driven by the E2 stepper driver (reverse direction)
- The two Y axis motors are homed individually to enforce parallel positions
- 20x2 LCD display enabled
- RAMPS stepper shield
- SD card reader enabled
- min+max endstops, always enabled, Y endstops with special logic circuit
- Servo output used to control spindle speed (M3/M5 op codes), outputs 1 kHz PWM signal