Bowden cap for dry box

Cap for bowden tube on dry boxes. The cap allows for a little bit of filament (about 10mm) to stick out into the cap (beyond the end of the bowden tube) to allow it to be grabbed and inserted in printer.

Can be tapped out (to M6) to receive an M6 bowden coupler. I tend to use the ones which have failed on my Creality Ender 3 and CR-10S printers (got about 10 of them now, lol!).

This part is designed for 1.75mm filament and 4mm OD bowden tube. IF there's a demand, I'll adapt it to fit other sized of bewden tube.