Aerosol Spray Can Bottom Domed Insert for Reciprocating Saw Shakers - Rustoleum 12 oz./340g Can

These are inserts for the bottom of aerosol spray paint cans for when using a mechanical shaker (Sawzall, reciprocating saw, other), so that the bottom of the can does not deform and dent excessively from the rapid agitation of the internal mixing marble. The insert also improves the surface area of the bottom of the can that comes in contact with the shaker, providing improved stability. They are designed specifically for Rustoleum brand 12 oz./340g cans, but they can be resized in your slicer, uniformly, or on any axes needed, to match the domed bottom of many different cans. There are three styles: Solid (a simple puck), Hole (with a pegboard hanging hole in the middle), and Pattern (multiple hanging holes made into a decorative pattern). I first made the solid model, but then thought about adding a hole for hanging the puck, which then expanded into a decorative pattern with lots of hanging holes. The solid insert prints faster and uses less filament than the pattern version, when using the following settings.

I printed these in PETG-HF, but most solid filaments should work. 0.4mm nozzle, 0.2mm layer height, 3 perimeters (X, Y, & Z), 10% infill. No supports or brim are necessary.