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Shredding is not the issue for recycling plastic. The issue is extruding the ground up pellets to product a uniform diameter filament. This requires both the pellet extruder output a uniform rate of plastic through a round nozzle, and that the extruded cylinder is pulled at a constant rate while cooled at a constant rate. Pulling will result in a diameter change and the goal is to have the OD harden at the same filament diameter.

In comparison shredding is very simple.

tell that to whom tried garden branch shreders, wood drilling augers, etc... lol

Your topic is shredding items made from 3D filament. Normally the reason in every other discussion is to then make filament from the recycled printed parts.

Garden branch shredders and even the shredders I used the summer I worked in a injection molding company is a totally different topic. Your deflection isn't working.

Actually it is a problem you need to make it easier for your extruder with using a uniform shredded plastic parts or u will have a different outflow that effects your filament diameter.

Stay tuned I'm working on a full filament recycling unit.