That compression screw on the extruder is something else.
Have you considered sintered/lostPLA casting the teeth for the grinder? I feel like that's the biggest limiting factor in making your own. You could even build them to accept carbide inserts
Have you considered sintered/lostPLA casting the teeth for the grinder? I feel like that's the biggest limiting factor in making your own. You could even build them to accept carbide inserts