First off, thank you to https://makerworld.com/en/models/123024#profileId-132528 for the inspiration behind this model.

I wanted to support both the hotend cable as well as the tube for the external spool and keep it from rubbing where it should not be rubbing. In addition I wanted the entry point for the cables to be at the back (just enough to get in without popping out), add height for a smoother path for both cable/tube while adding as much strength as possible with sizing as well as with unobtrusive chamfers/rounding. Hopefully this means no snapping where it shouldn't.

Printing profile: The profile is setup by default for the A1 mini, by just changing the printer (as we normally do to A1/P1/X1 from supplied profiles) and transferring the settings makes it workable on whatever you printer you have idel. I've printed on both my X1C and A1 mini with these changes while going through the various iterations of the model.

NOTE: In addition to the stl file, I've also included my original OpenSCAD model should you wish to make changes (for this you need BOSL2)