In and out
thingiverse
The "In and out" track does as the name implies. The bearings enter from a 20mm track or switch. The bearings tended to bounce out a percentage of the time, so i made the in and out starter" to keep the bearings in place. In order for these to stack and work correctly, you will need to mirror the track in your slicer to get the other direction. I named my g-code files right drop, and left drop.
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