Marble run set - Building blocks and compatible bricks

A small set of compatible bricks.
9 pieces with which to build tracks for marbles.

For all the parts that make up the 3D pieces:

1. go to https://costantinomontanari.it/project/duplo-marble-set/
2. create a free account
3. download all parts

For other interesting items go to https://costantinomontanari.it/free-file/ 🚀