Bowden Extruder using 5mm threaded Pneumatic push fitting.

This is part of a quick change system

The stepper motor has separate Din Connector so if a tool needs a stepper attached, as in the chocolate printer.

This is a rework of the extruder that cam with the machine.

Mods I have made.

1. increased materiel around drive gear and bearing
2. added bracket to attach to frame
3. add bracket to take m5 pneumatic fitting
4. added extra material to bolt evenly to stepper motor
5. added notch for bolt holding bearing