Marblevator, Armed (but not dangerous!)
cults3d
This Marblevator is indeed armed, as it utilizes an arm mechanism to lift marbles from the end of the track and position them at the beginning of the track, but it's not deadly (well, unless a finger gets in the way)! The tracks are interchangeable, I'm working on new ones. UPDATE: a fresh, equally dull track is here: http://www.thingiverse.com/thing:637965. Video of prototype is here: https://www.youtube.com/watch?v=PAVz1Sx7UTg. Designed using Sketchup Make 2015, and printed in PLA on a Makerbot Replicator 2 using Makerware 2.3.3.42 "Standard" Settings (.2mm layer height, 2 shells, 10% infill).
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