Wow, that is awesome! I printed two segments, and they were perfect!
Now I actually tested snapping them together... "crazy tight" is an understatement. Without some grinding it is really impossible, and even after I managed to snap them, it was really stuck in place, with no room for rotation. Probably as it grows it will become very tricky to do. I'll try smaller filaments, it might help, and more grinding before trying to snap them.
Thanks a lot! I'll post a picture once it is complete.