Description Planet Rings are a 0 G game/challenge.  The objective is to spin the rings around the planet (ball) in different directions.  Is it even possible?  I don't know, I have no way to test it in 0 or low gravity.  Maybe someone else can... Printer Brand: Robo 3D Printer: R1 ABS + PLA Model Rafts: No Supports: Yes (Just for the sphere) Resolution: high Infill: 30% Notes: Really an easy print; just over 2 hours on my Robo 3D.  I printed the planet and rings all at the same time.