A curtate epicycloid is a fascinating type of curve generated by a point fixed at a distance less than the radius of a small circle as it rolls without slipping along the outside of a larger fixed circle. Unlike the standard epicycloid—where the tracing point lies exactly on the circumference—the curtate version creates loops that do not reach out as far, forming rounded, petal-like lobes that remain closer to the larger circle. This curve appears in various applications, including gear design a

553K views · 5.9K reactions | It's time for another Cycloidal Drive reducer, this time with correctly shaped Cycloidal discs. I'm using nylon bushings this time to try to reduce weight and cost, but will it work out how I expect for this version of the Cycloidal Drive? | James Bruton | Facebook