Hypocycloid How To (25:1 example)

thingiverse

This Thing includes complete design files in OpenSCAD and instructions for customizing according to your needs. It also provides a set of STLs that can be printed to produce the example shown in videos. The inspiration for this Thing was Thing 43176, but it addresses some limitations in that design such as size, gear ratio, and output shaft compatibility. The author shares a video demonstrating the performance of this Thing with a NEMA14 stepper motor. This Thing is an extension of the design provided by JEdren (Thing 43176) and includes Python scripts from Alex Lait for hypocycloid gear reducer design. The OpenSCAD files are included, along with instructions on how to modify and customize the design as per your requirements. To assemble this Thing, print the required parts using a 0.2mm layer height, 40% infill, infill every other layer, two vertical shells, and three horizontal shells. Clean up printed parts using a Dremel with rotary file to ensure smooth fitting of bearings and rotation. Assemble the parts by placing bearings and motor shaft onto the input and output shafts, followed by securing the Hypocycloid Gear Reducer to your motor using M3 bolts. For further customization, scale the cams for rotor to 99% when importing to OpenSCAD, and generate a new STL for the rotor. The provided instructions explain how to modify gear ratio, output shaft, or input shaft as per your requirements. However, it is recommended to be familiar with Python and OpenSCAD before attempting customization.