These 3D printed Flextube Extensions for GraviTrax marble runs were built by the Coogelbahn.de shop on Etsy. I received these …
source
These 3D printed Flextube Extensions for GraviTrax marble runs were built by the Coogelbahn.de shop on Etsy. I received these …
source
GRAVITRAX CHALLENGE ANNOUNCEMENT : Attention GraviTrax Builders! Be included in my 1000 subscriber video! source
Mega coolπ€©π€©
Very nice part π€©