Gravitrax compatible 6-exit Basic Tile

I remixed the original design by ferofox adding 3 more exits because I needed it for a few other components I am designing (you can see the first, a star crossing, in the photos).

Also, I noticed (but it could be my printer's or my slicer's fault) that the curved marble entrances in the original model were 0.4mm too low, thus making the ball "jump" slightly when coming out of the basic tile and onto an original adjacent tile. I made them 0.4mm higher, to make transition to and from this tile smoother.

**Edit:** I uploaded a new version, I made the 6 tabs on the bottom a bit thicker, because they tended to break easily, and added 3 hexagonal holes to be used for my [Gravitrax Compatible Elevation System](https://www.thingiverse.com/thing:3750276).

**Edit 2:** The version uploaded now is the final version, changes from the previous version are minimal, only a fillet on the outer edges and slightly larger hexagonal holes.

If you want to see possible uses of this basic tile wit