This telescoping planetary gear was entirely 3D printed except for a few M3 screws. My machine's calibration was significantly off at the time, so I had some clearance issues and I need to do a bit of sanding to get the pieces to fit. Otherwise, it was just print, remove part, print, remove part, print remove part, ... assemble. The pieces were done in the office, next to the boys bedroom, while the boys were sleeping, or during dinner hours.
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