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Hobb-Goblin - 8mm ID Drive Gear
A wicked little filament drive gear made from stainless steel with really sharp little teeth cut into it.
These are carefully manufactured on a synchronised CNC process which gives a sharp, consistent, and clean cut tooth profile that has incredibly good grip.
We've tested these with 1.75mm and 3mm filaments, from the soft and delicate flexibles to hard and abrasive materials like Carbon-Fibre PLA. All with great results.
These are a great match for our NEMA17 Geared Stepper Motors with 8mm shafts to create high performance extruders for 3mm or 1.75mm filament.
Attaches to a 8mm motor shaft with an included M3 Set Screw