Thingiverse
Marble Pump
by elfnor
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Turn the crank handle and the marbles are pumped up the vertical shaft to return down the spiral.
Based on the mechanism seen here: http://www.sentex.net/~mwandel/marbles/pump.html.
This marble pump could be combined with many of the other marble runs found on thingiverse.
Based on the mechanism seen here: http://www.sentex.net/~mwandel/marbles/pump.html.
This marble pump could be combined with many of the other marble runs found on thingiverse.
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