About this 3D model

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 ther are model versions for D10xH3mm and for D8xH3mm zylindrical 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 spinns and spinns and spinns - might not work for everybody, depends on how strong your magnets are