Bottle Cap Insert for Knurled Shaft

thingiverse

Another print centered around a Source Perrier bottle cap utilizing Tough Ink from M3D. The cap fits rather snugly against the ridges on the inside, so a small amount of glue won't cause any harm. Alternatively, printing with fairly dense settings would achieve an even better fit. I opted for thick, hollow walls to demonstrate and speed up the process, but you can expect a much tighter seal if you choose medium infill instead. Printing solid might require some force.