This curve bridge is is remix of https://www.thingiverse.com/thing:4677926. I've previously used that design to create a mini-plate.

This design is intended to keep three tiles tightly connected together to form a curve that turns the marble's path 180 degrees.

Again props to https://www.thingiverse.com/fredle1957/

N/A - used a printing service

No

Yes

Not sure

20%

I use a printing service I found on Cloudcraft - http://3d-easy-printing.com/

I've submitted a number of jobs and the results have been excellent. The vendor is very friendly and knowledgeable.

You may need to file the internal tile holders slightly. The bridge is designed to be a tight fit so that the tiles don't move.

Used TinkerCad to remix an existing design.