Summary

Dasfilament refill compatible spool split into small parts that should fit almost any 3D printer, including my Kossel Mini.

Print 16 panels, 2 rings, 1 core. Before committing to the whole batch, check your XY compensation in your slicer and test-fit with two panels and one ring. They should go together firmly, but not require hammering.

After printing the wohle batch, assemble eight panels into each of the two rings. Then put one assembly onto the core and secure with eight M3 screws. Put on the refill material, and then secure the other ring to the core.