Parametric Friction-fit cap

This is a simple friction-fit cap. It produces a circular plate with a ring inside. The ring has nubs which are adjusted to provide a friction-fit in the target hole. As designed it requires no support and the outward face has the build plate texture on it. It was initially designed to replace loose friction-fit caps for salt and pepper shakers, however in designing it I ended up building a parametric model that might be useful to others. The OpenSCAD allows the user to adjust cap diameter, cap plate thickness, inner ring radius, thickness, and height, and the friction-fit nub count, protrusion, and width. A user can quickly iterate a friction-fit circular cap for whatever purpose they may have. I printed these in PLA and have been happy with the result.