Marble Clock

Marble clock The balls start from the upper tank to go into the inner part of the upper cone in the middle, they exit to pass outside the lower cone before ending their stroke in the lower tank. The interest of the machine lies in the observation of its operation in this pespective, it would be interesting to print the objects with a transparent resin. For the assembly, it is necessary to provide brass tube diameter outside. 6mm inner diameter 4.5 mm Length 38.5 mm 6 pieces Length 115 mm 3 pieces Threaded rod M4 length 205 mm: 3 pieces M4 blind nuts: 6 pieces Steel balls diameter less than 5 mm