QaDFC Filament Cleaner for 5x1mm magnets

I wanted to try this print but only had a box of 5x1mm round magnets available. So I scaled the original model down, modified the depth of the magnet recesses and restored the internal diameters of the filament and Bowden tube holes.

They worked nicely, but after making a couple of these and using for a few days I became frustrated with the difficulty of pulling the shell halves apart as the magnets are stubbornly strong and only struggling with fingernails did the job. I had the idea to add a small pull tab on the end of each part, and this extra modification works very well.

The gcode perimeters are generated with Arachne in PrusaSlicer 2.5.0 alpha; I think the result is quicker and cleaner than my previous attempts using 2.4 as there is now no fill needed in the perimeters.