Pellet extruder

[jzagaja]

Here I would like collect your pellet extruders prototypes. What is most important for such extruders? In my opinion feed section/hopper. They need proper grooves to push pellets down the pipe. Also 10mm diameter to be minimum. What about torque? 1-2Nm sufficient? Axial bearing necessary? I think so watching how strong the screw is moving up during extrusion.