Dasaki Compact 1:3 Geared Extruder for Prusa i3 (MK8 drive gear)

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Compact compared to Wade's geared extruder is 1:3. A large wheel has 33 teeth and a small one has 11. Motor size can range from Nema 17 to Nema 11. Body_part_B_1_75mm is designed for 1.75mm filament; you need to add a 4mm OD/3mm ID PTFE tube piece. Body_part_B_3_00mm is made for 3mm filament without needing any PTFE tube. Filament guides named "1_75" are specifically for 1.75mm filament and offer a clear view of the filament input hole, along with a built-in filament guide/pressure adjustment mechanism that you can secure with some glue to fix the knob to the M4 screw. You have four different stiffness options for the piece filament_guide. You also get to choose where the motor is positioned: either to the left or to the right. No supports are needed as they're already included in the 3D models. Body_part_A and body_part_B feature space for extra M3 captive nuts, so you can attach your own items like fan ducts and leveling sensors. You'll need a hobbed Drive Gear (MK8 with about 7mm effective diameter) and the following hardware: * Two 605 bearings * One 623 bearing * One M5x45mm screw, hexagonal head * One M5 auto-locking nut * Two M5 washers * One M4x10mm screw, hexagonal head (knob) * One M4 nut (knob holder) * Three M3x10mm screws (motor) * Three M3x25mm screws (assembly) * Four M3 nuts (two for assembly and two for the pinion) * One M3 auto-locking nut (assembly/filament guide) This is licensed under The TAPR Open Hardware License. If you're a curious maker, tinkerer, or hacker, check out my blog at http://www.therandomlab.com