Centrifugal Gold Concentrator

This model was created with careful attention to the geometry of the inlet position and angle, the bowl floor, and the center cone. The inlet tube is intentionally oversized to allow for different hose adapters to be used with varying internal diameter, which allows you to dial in the flow vs velocity. I have had great success with a 1/4" diameter inlet that gives good speed without flooding the bowl. I believe 5/16" may also be a good fit. I recommend using adaptive layer height on the bowl floor and center cone to maximize smoothness. I have printed as thin as .04mm adaptive, but would recommend increasing the infill density if you go this thin, to support the bowl floor as it prints. Support interface for the inner wall of the inlet tube is preferred but regular support will work fine with some post process sanding to ensure a smooth wall with little turbulence. Printing in PETG is also preferred for resistance to moisture. It is a bowl filled with water, after all.