Hobb-Goblin 5mm/8mm ID Drive Gear

In stock, ready to ship. 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 processs which gives a sharp, consistent, and clean cut tooth profile that has incredibly good grip. 5mm variant: These are a great match for our NEMA17 Stepper motors with 5mm shafts to create low cost and simple extruders for 1.75mm filament. Attaches to a 5mm motor shaft with an included M3 Set Screw. 8mm variant: 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. 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. - See more at: http://e3d-online.com/Mechanical/Bowden/Hobb-Goblin-8mm#sthash.FZ4qRSsB.dpuf 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. - See more at: http://e3d-online.com/Mechanical/Bowden/Hobb-Goblin-8mm#sthash.FZ4qRSsB.dpuf 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. - See more at: http://e3d-online.com/Mechanical/Bowden/Hobb-Goblin-8mm#sthash.FZ4qRSsB.dpuf 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. - See more at: http://e3d-online.com/Mechanical/Bowden/Hobb-Goblin-8mm#sthash.FZ4qRSsB.dpuf Attaches to a 8mm motor shaft with an included M3 Set Screw. CAD Drawings: https://e3d-online.dozuki.com/Item/Hobb_goblin