Heavy Duty Funnel with Threaded Outlet

This is a stout funnel that threads onto the top of my sand blaster tank so that I don't have to hold it, and is big enough to not spill the media.  It was made with a simple OpenSCAD program using a library for the threads.  The library location is in the comments in the program file, and is a derivation of a general purpose library.  The library includes hose threads and metric threads.  At some point, this could be made parametric if I or someone else has the interest and energy.

I printed it in recycled PLA, with 3 vertical shells, 3 top and bottom layers, 15% infill and gyroid infill, and its plenty strong.  There is a flange at the base that helps stiffen the funnel nozzle where it connects to the tank, but also forms a base on the print bed.  The funnel is printed right side up and no supports are needed.