HAPE Quadrilla straight line hole dimension 230 mm

thingiverse

The hole dimension 230 mm, measured at the center of the holes, is designed to fit normal lines perfectly. It seamlessly integrates on roundabouts and curves that form a 1/6 circle. Update 2020-11-27: With 44 downloads and 1 collection, I've decided this project is no longer in progress. Update 2020-07-17: A small brick has been added, which can be printed twice and stuck together with superglue. For guidance on attaching it to the line, visit www.thingiverse.com/thing:4125179. Update 2020-02-28: The problem with the hole in the middle has been resolved, and the bug is now fixed. Update 2020-02-09: I corrected some mistakes that caused marbles to jump when using flat fillings for the holes. A small bevel was added to the middle where marbles roll. I'd appreciate it if someone who's printed this could leave a short comment or post a make. A group has been founded for the HAPE Quadrilla marble run: https://www.thingiverse.com/groups/hape-quadrilla-marble-run. Have fun with it!