Rotary engine
grabcad
This is a spreadsheet for calculating the geometry of rotary engines (e. g. Wankel engine). It is for a tutorial (How to design a Wankel or any other rotary engine), for which I couldn't upload this directly.
Download Model from grabcad
With this file you will be able to print Rotary engine with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Rotary engine.