Pasta Machine drive motor

thingiverse

This project started because I had a dead printer scanner headed for the trash. I disassembled it and salvaged several useful components. Since it contained a decent DC motor and power supply, I decided to build myself a drive motor for my pasta machine. The motor is factory fitted with a metal toothed belt pinion. I filed off the flange and created a flat surface onto the pinion in order to accept the printed pinion found here: https://www.ebay.co.uk/itm/OEM-Canon-Pixma-iP4300-Printer-Belt-Drive-Motor-QK1-3042/192893271834?hash=item2ce955bf1a:g:btwAAOSwU~VcuQ5q. The printer contained a 6.9mm steel shaft which I used for the axles of the second and third gear. The axles are 28.6mm long. I filed two flats on the remainder of the steel shaft and utilized it to ream the center holes of the printed gears. I used the 9.5mm steel paper feed roller to create a square drive shaft matching the pasta machine drive. The shaft is 50mm long, and I drilled and pinned the square drive to the final gear using two M3x14mm pan head screws as pegs for the drive. Ten M3 self-tapping screws recovered from the printer hold the assembly together, while two original machine screws from the printer motor secure it in place. Speed control, forward, and reverse are provided via the DC motor controller purchased for this project: https://www.ebay.co.uk/itm/DC-6V-12V-24V-3A-Reversible-Motor-Speed-Controller-Regulator-Driver-Switch-PWM/173517709342?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649. The 24v supply line from the printer powers the project, but I have yet to design an enclosure for it. The power jack was recovered from an old router that was also headed for the trash. The gears were designed in Fusion 360 using the spur gear plugin. Each gear progressively increases the tooth module to make the teeth stronger as the speed is reduced through the gear train and the torque increases. I used a backlash of 0.2mm. The gears were printed in PLA with a layer height of 0.1mm and 20% infill. Initially, the gears were too tight to mesh, but printing at 99% scale solved that problem. Other parts were printed at a layer height of 0.2mm and 20% infill. Print gears with the chamfer side down to reduce elephant foot. The electrics case could benefit from supports, as does the bottom case. You can view the video here: https://vimeo.com/user104852921/review/371210122/4805199f0b