MK7 Direct Drive Hobbed Gear - 1.75mm

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These precision-made hobbed gears are designed to be attached directly to a stepper motor with a 5mm shaft. They grip tightly using an M4 grub screw.

Many direct drive extruder setups are designed to work with gears such as these - see Thingiverse for different designs.

These gears are designed to work with 1.75mm filament, and do so perfectly. They will physically work with 3mm filament, but you will need a very beefy stepper motor.

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