Simple Christmas Pyramid

thingiverse

Another Christmas/Winter Themed Design Modeled in Fusion360 Inspired by Traditional German Christmas Pyramids (https://en.wikipedia.org/wiki/Christmas_pyramid) Simple, Minimalistic Approach Powered by Rising/Moving Air from a Heater/Radiator/etc. Do Not Use Open Flames! Uses a Small Magnet and Some Steel Balls as a Rotational Bearing There Are Model Versions for 13mm Steel Balls, and 1/2" Steel Balls ("_inch") The Arc Base Structure Consists of 3 Parts Glued Together, Make Sure to Sand the Contact Surfaces Flat to Make the Assembly Easier There Are Model Versions for D10xH3mm and for D8xH3mm Cylindrical Magnets You Need to Print "Base" 3 Times and One "Bladering" Model Units Are [mm] https://youtu.be/Eks_HvOsT2U Edit 20171203 After a Few Weeks, the Steel Balls Creating the Rotational Joint Seem to Have Flat Spots Which Increase Friction and Stop the Rotation of the Bladewheel I Added a Very Small Steel Ball (One from a 608 Skate Bearing) in Between to Decrease Magnetic Forces and Minimize Contact Area It Works Better Than Before and Spins and Spins and Spins Might Not Work for Everybody, Depends on How Strong Your Magnets Are