A funnel for a project I'm trying out, the funnel is supposed to be glued at the bottom of a container. The inner diameter of the tube attached to the funnel should be Ø 7 mm and somewhat flexible (The diameter of the connector is a bit wider than that to ensure a tight fit)
The hole at the bottom of the container should be around Ø 40 mm, the base diameter of the funnel cone is a few millimeters short of that.
If you print it solid, you can drill holes and use bolts with a some sort of gasket to make a better seal.
Print time: 46 minutes
Filament used: 2.93 meters of PLA
Estimated material cost (PLA): ~0,26 €
(Calculated from 200 m spool with a price of 17,99 € ≈ 0.08995 / m)
3D Printing glue stick was used to ensure that the model doesn't lift from the platform during the first few layers.
After rubbing the printing glue away with a water dampened cloth, the object might benefit from mild filing, sanding or from a couple of swipes with acetone dampened cloth (makes the surface smooth and nice)