Filling funnel for 1ZPresso JX-Pro coffee / espresso grinder

This is a simple funnel that makes filling coffee beans into the 1ZPresso JX-Pro grinder faster and less annoying.

As it comes stock it's relatively easy to both spill beans over the side as well as having them sit in the adjustment thread.

This funnel fixes both issues by providing a much larger opening as well as covering the recessed thread so no beans can get lodged there.

Version 1.5

This is now updated to a version that's slightly easier to print (less support needed) and with better bed adhesion.