Wiring for Extruder - xpix/XHTC GitHub Wiki
BIG Wiring on Washers from Toolholder:
A --- B A (GND_EXT): Extruder-
B (GND_FAN): Fan-
C C (VCC EXT): VCC for FAN & Extruder
Small Wiring on pogo pins from Toolholder:
1 GROUND (normal ground of board)
2 Thermistor+
3 EMPTY
4 EMPTY
5 EMPTY