18mm funnel

thingiverse

I encountered difficulties finding a funnel that fit perfectly in my paint and water bottles, as they all have 18mm-ID openings. Eventually, I created my own. It took 45 minutes to print at low resolution using my Replicator 2. The funnel isn't watertight, but it doesn't need to be since I use it to pour measured powdered pigments into the bottle before adding them to a shaker for mixing.