cut Wankel rotary engine

I made this, when learning with Siemens NX 12. You have to test what diameter of rotor (Kolben) fits best with you Printer. I set the scale to 50% and melted nuts in some of the holes in the middle plate, so that I could screw it together with M6 screws and small SPAX, glue might also work. The cutaways are painted with acrylic paint.