DPGE: Double Planetary Gearbox Extruder (beta)

thingiverse

This is a beta version of my double extruder with planetary gear. The gear ratio is 1:4444. Functionality remains uncertain until all parts are fully tested, but a functioning prototype made with only one level has performed very well, indicating that this design will also work flawlessly. The main block holding the motors (NEMA 17) features a fastening plate with holes spaced 2 at 88mm distance. I adapted this part to sit atop my P3Steel frame. I designed this for the trains to be printed separately in durable materials such as ABS or nylon, while using different materials for the remaining parts, like PLA. You must cut the output shaft from the stepper motor slightly to accommodate it properly. Remember that six planet gears are used in this design! The current mode of this design is NOT TESTED. Faults can occur both in the design and text. Translated with Google Translate, some errors may be present due to translation inaccuracies. BOM Nuts & Bolts: * 8x M3x25 * 4x M3x20 * 4x M3 Nuts * 6x M3x15 (note: actually 11) * 2x M5x40 Extruder Components: I based my extruder design on an all-metal kit from AliExpress. The parts included in this kit are the bridge to lock the filament feed wheel, slave wheel tightening screw, spring, pins, and nut for setting pressure. Link to the extruder: https://www.aliexpress.com/item/1Set-DIY-Reprap-Kossel-All-metal-Remote-Planet-Reducer-Motor-Geared-Bowden-Extruder-Alimunum-alloy-for/32454606130.html?spm=2114.13010608.0.0.884ozL Additional Components: * 4x 625zz Bearings * 2x Pneumatic couplings with M6 threads * 2x NEMA 17 Stepper Motors * Some good grease for the gears