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Gear Extruder - Anyone interested?

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I've had some success using NinjaFlex SemiFlex filament and the geared extruder. I have to slow the print speed down to 40mm/s and It still occasionally has issues where the filament will twist inside the bowden tube and cause it to jam but at least its printable where its been impossible with the stock geared extruder. I've been using the larger 0.8mm nozzle and that seems to help reduce the pressure inside the tube which helps print reliability with flexible filaments.

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