Marble Machine #1 Hand Cranked
This machine is hand-cranked and has a stairs type lifting mechanism. The camshaft is geared down to ensure smooth motion. Made from precision laser cut MDF and plywood. Plated steel axles. 5mm steel balls are included with the kit..
Full assembly instructions in PDF format can be downloaded from here: http://themadmuseum.co.uk/mad-kits/
Dimensions 140mm W x 110mm D x 120mm H.