Reuleaux Planetary gear

thingiverse

Time ago, I came across a video called "Reuleaux ball bearing: does it work?" And to my surprise, it works beautifully, but only because the flat roller elements fail to stay in position, causing them to interlock. So, my thought was to redesign it using gears. - Printing this model should be relatively easy. You can have 3 Reuleaux or planet elements each. - What's New: This is a Math art model with a base and crank. The gear library follows the idea of gear cutting but has been completely rewritten from scratch. This design is fully published in its source files and is open-source. - What's Not New: The idea of gear cutting itself isn't new; I've seen this concept before on user parkinbot's page. This project isn't a remix or copy, though - it could be considered a parallel work. - Using the OpenSCAD Design: Due to long render times, this design is split into multiple steps. For example, you can load _sun.scad first, which will generate the gear shape. Export the rendered result as _sun.stl, then load sun.scad again. This will generate the final result, sun.stl, and so on. Reuleaux gears are a unique combination of normal gears, with no specific mathematical formula for their extraordinary shape. The gears.scad file generates an outer gear shape. You'll need to create a cylinder and use the difference() function to subtract this shape from it. The gear module is set to 1, meaning the tooth distance is pi millimeters, and the working diameter (mm) equals the tooth count. If you need different measurements, you can use the scale() function. Parameters for profile shift and tooth angle are also available. This library has been optimized for faster render times with fewer warnings and less internal data. It uses a single tooth to roll around instead of a toothbar. Twin Projects: https://www.thingiverse.com/thing:1439718 https://www.thingiverse.com/thing:1414403