These 3D-printed Bowling Pins for GraviTrax marble runs were built by the MarbleMania3D shop on Etsy. See the long form video …
source

These 3D-printed Bowling Pins for GraviTrax marble runs were built by the MarbleMania3D shop on Etsy. See the long form video …
source
Sooo satisfying!
Wow bri
So cool๐คฉ๐คฉ๐คฉ๐