To be used with this.
https://www.thingiverse.com/thing:6477199
Insert the end of that into this model from the inside . Then insert this model into the tube of your funnel. My funnel tube is 22mm diameter by 40mm long.
Can pour ipa into funnel and this thing will further funnel into a 2mm or bigger drain hole.
It's designed that if the end tip is broken you don't have to replace this model.
Can be printed with FDM PLA.
Drain_Hole_Funnel.stl | 63.9KB |