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Descrição
I recently updated this machine so check out my remix before cutting this version. http://www.thingiverse.com/thing:148312
A laser cut, hand cranked, miniature marble machine.
More information is available on my blog, including assembly instructions and kits for sale if you don't have access to a laser cutter.
http://msraynsford.blogspot.com/2014/01/motor-marble-machine-12.html
Instruções
Designed to be cut in 3mm MDF and run with 10mm ball bearings. The screws were M3 x25mm., and nyloc nuts on everything