Marble run satisfying spinner with GraviTrax.
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I spent 1000 hours printing 250 add-on accessories for GraviTrax marble runs on these 3D …
Marble run satisfying spinner with GraviTrax.
source
I spent 1000 hours printing 250 add-on accessories for GraviTrax marble runs on these 3D …
How does that even work
Awesome
So coolπ€©π