April 4, 2026
Description
StopLossBags sells a silicone funnel but it does not stay attached well enough to use with viscous finishes like tung oil that take a long time to drain into the bag. My funnels screw onto the threaded cap and include a tab that allows you to clamp the whole assembly to a table, conveniently leaving both of your hands free for less-messy pours.
2026-04-03
Add new versions for the larger opening on the new "Steward" bags that have two openings.
Updated screw geometry for both large and small openings, based on changes I made for the replacement cap model (see below for link).
I've included 3 sizes that I think should work with most use cases, but as with most of my designs, you can find the configurable source CAD here at onshape. You can use the configuration there to adjust the height and diameter, opening size, as well as whether or not the funnel includes the rim.
You might also be interested in my Replacement Cap for StopLossBags model.
License:
Creative Commons — Attribution — Noncommercial — Share Alike
10
ex-nerd
