Extruder motor planetary gearbox Free 3D print model

cgtrader

SummaryThis is a custom-designed planetary gearbox for mounting between an NEMA 17 extruder motor and an extruder mechanism, featuring a 5mm bore and common metric bearings for easy installation and replacement. By adding a gear reduction mechanism, this design aims to prevent motor overheating and maintain optimal performance. It builds upon my previous custom gearhead extruder design, streamlining it with the use of standard parts instead of eclectic mixes from my junk bin.The design is still unproven; these files have not been assembled or tested, but they're based on a working prototype that's been running smoothly for hours. This design requires feedback from users who test and build it to confirm its effectiveness and identify potential improvements.InstructionsTo assemble the gearbox, you'll need to acquire the following components:8x 625 bearings\n3x 25mm long M5 screw\n1x 40mm long M5 hex head bolt\n4 M5 hex nuts\n4x 50mm long M3 screws\n8x 20mm long M3 screws\n4x 10mm long M3 screws\n3x M3 set screws\n15x M3 hex nutsYour existing motor and extruderAlso required are three 'Planet' part prints, one of each other part assembly.To build the gearbox:Remove your motor from the extruder and save the mounting hardware.Insert two bearings into each planet gear. Press one bearing into the carrier piece from the underside. The bolt should fit snugly into the plastic. Turn a hex nut onto the bolt until it's tight against the plastic.Now, press another bearing into the cavity of the carrier piece. Tighten the M5 nut in the carrier piece by hand, then install the remaining 3 hex nuts.Turn three set screws into the Sun gear holes and thread them through the nuts.Push the sun gear onto your motor's output shaft, ensuring the set screw end faces towards the motor.Face mount the Rear Plate part to your motor using four 10mm M3 screws.Attach the Ring Back piece to the Rear Plate, facing its flat side away from the motor.Now insert three planet gears between the ring and Sun gear. Be mindful of their orientation as it only goes one way.The Carrier piece can be used for spacing and holding the planets in place. Tighten the set screws on the Sun gear once the planets are in place.Insert the Ring Front part by lining up alignment arrows, securing both parts together using eight 20mm M3 screws.Insert four hex nuts into the small cavities of the Front Plate piece and slide one bearing into its circular cavity.Now attach your drive gear to the M5 bolt after you slide the front plate over it.Line up the mounting holes on both plates with long posts in the ring assembly. Clamp them together using 50mm long M3 screws.Align until you can move the carrier manually by hand.It may take several hours of motor running for the gearbox to work smoothly.Before installation, attach your extruder to the gear assembly and then connect your drive gear to the M5 bolt.Use a second bearing on the output shaft to ensure proper support and prevent excessive strain.Note: After adding these files, please update and provide me with your source code as required.