Planetary calculations

thingiverse

Here is how to draw a planetary gear, very useful in robotics transmissions. Using only EXCEL and OpenSCAD. The planetary could be customized to yield a proper design for your own project. OpenSCAD has a library to draw gears, easily, however: you must be able to calculate the number of teeth related to the wanted pitch. I tried to build a library to ease this process, instead I found excel useful to make the calculations. Print Settings Printer Brand: Prusa Printer: Prusa Clone Rafts: Doesn't Matter Supports: Doesn't Matter Resolution: 3mm Infill: solid Notes: none Post-Printing none Gears may be found tightened after printing process, carefully steer them apart. How I Designed This Computing Distances Distances & Teeth Using Excel: You can find the distance from planets to their sun-centered position, and the number of teeth each planet should have. Take a look at the calculations (They are shown on worksheet as comments) Standards NGSS