Bowden port for cake carrier.

I'm using a dollar store cake box to keep my larger spools (that don't fit in a cereal box) somewhat protected from the ambient air. This fixture is based on a 26 cm radius. I hot glued it in place and trimmed the hole with a razor blade. It has M10x1 threads for a quick connect to fit a standard Bowden tube.

If you cannot find a cereal box to fit your Prusa Filament, try this. The box is only $1.25 at the dollar store, I am using a spindle from another design (for a rectangular box) and a core style desiccant holder.

Print as loaded. No supports. I prefer 25% gyroid, but that's likely overkill and it can print with 0% infill. Only took 30 minutes on my Voron.