Here is yet another remix of SPANNERHANDS great design.

My motivation was to have a version of the Spool Box that I can print in my small Dremel printer without the need of glueing parts together and also without bolts, nuts and bearings. I usually don't have the right screws at hand...

The tolerances are really "tight" on purpose. The idea is to snap it on just once (without breaking it of course).

The uploaded version is 100% screwless, but I have a version that requires screws for the PTFE coupler in case you don't like the snap-on version (which is a bit more difficult to print). Let me know.