The file 'The Cyclone Marble Machine – Fix For Elevator Not Working 3D Printer Model' is (stl) file type, size is 1.7KB.
Just a quick fix for balls not feeding into the spiral / elevator, I found that adding a 1mm shim to fill in indents at the bottom of the shaft helped my version run smoothly.
Marble_Machine_Fix_3.stl | 7.9KB |