Hii :3

This is my tiny modular marble set. Needs to be printed at 0.08mm, 0.2mm would work but the connector quality will vary a lot due to small imprecisions. The first time you connect them it might take a bit of force, but it'll loosen up after 2-3 connections. Connectors should last 500-1000 connections as they are not friction based. And plastic deformation isn't an issue for the connectors since in their fully connected (or loose) state they aren't deformed.

Outer brim is needed or they'll come loose, I recommend 10mm. And I recommend any rigid plastic like PLA.

For the funnel, you should get decent numbers of spins, but unfortunately due to physics it is difficult to get as many as larger marbles.

For marbles, you can use 4mm ball bearings, or some holeless/drillless beads like this

[https://a.co/d/cq5V3GE](https://a.co/d/cq5V3GE)
 

Keep in mind the bead's diameter can vary slightly so don't use ones that seem larger.