Tiny Planetary Gears Set High-Speed Adapters

First printed this timeless project a decade ago on my first 3D printer, an 8-bit homebrew RepRap running Marlin 1.x. Decided to revisit the project to see the impact of updated slicers & high-speed 3D printers on making the project.

The remixed items are a modified hex tool bit with a rounded shoulder better suited to high-speed rotation and a hex adapter for the tool bit that is designed to screw to the mandrel from a high-speed rotary tool cutoff wheel. Also included updated six-stage (87mm), seven-stage (99mm) and eight-stage (111mm) rods generated with the Openscad script. The zip archive attached to the remix includes the original three libraries updated to remove the deprecation warnings experienced when used with later versions of Openscad.

Successful printing of the longer bolts required printing them one-at-a-time with a 10mm brim, .1mm layers, 3 lines and no infill. This gave perfect results with fine threads and a strong rod when done in PLA+.

I built six (4096:1),