Easy print, support free, bottle top funnel, vented to ease fluid flow. Suitable for FDM or Resin, though a Midrange sized resin printer or larger is needed.

The idea of the funnel is to replace the cap found on most plastic drink-style bottles with a threaded funnel, for perfect fitting. This makes the funnel much more stable, and the added vents allow the liquid to flow more easily.

I designed around a standard “drink” bottle top, as shown here as a Coca Cola bottle. These tops are usually 27mm (approx.) in diameter including the thread, though I can’t guarantee all bottle tops are the same. To prevent waste, I’ve included a Bottle Top Tester file. Print this and check for a match on your bottles before printing the funnel.