Marbelvator, Armed (but not dangerous!), Back On Tracks.
myminifactory
A freeform track version of Marbelvator, Armed (but not dangerous!). Print as many track sections and trestles as you desire, and design your own track! You can build a simple two piece track without trestles, or expand your track with trestles as long as gravity allows. "Track, Tower End.stl" contains five entry points, allowing an almost unlimited amount of track configurations, thus you can test your own track design skills. Start small, end wherever you chose. Video of prototypes are here: https://www.youtube.com/watch?v=_8yNXA3dxdo&feature=youtu.be, and here: https://www.youtube.com/watch?v=ZLuxL0AXqpE. 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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