This model is a parametric multi-geometric washer generator, specifically designed for high-friction mechanical fits. It uses two-dimensional contour offsets to create uniform walls around four different hole types

I designed this to be used behind the stove knobs to help secure my stove safety cover. If you maintain strict tolerances and use TPU, you can use them as stoppers to provide resistance to the shaft. These custom shapes are based on the cross-section of the stove knob pins I've encountered. TPU is the best choice for this tool, but in many applications, as long as you use it as a real gasket rather than a stopper, PETG or PLA are also acceptable.