marble run spinning drop tower

Marble Run that you can build as high as you like One part of a series of models that will go from my top stair to the bottom of my staircase. The weight of the ball bearing turns the center helix that lowers the ball until it spits it out at the bottom. 5 parts make up a single tower with just 3 more needed for ever level you want to go up. In addition to the printed parts one 17mm ball bearing and 2 bearing rings 8mm x 22mm x 7mm Printing Tips The assemble is fairly obvious just make sure the helix has the smoothest side facing up If you are printing from the the STL files make sure they are laying flat on the build plate. If printing from the 3mf files these should be good to print. Only the helix needs to be done at a good quality level. https://youtube.com/shorts/sSmE5CTWaTM?feature=shared