Customisable Jar Canning Funnel

A simple, parametric canning funnel for filling jars with dry goods. I do not recommend using it with hot jams or preserves - it could work with PETG, but still, temperature is a factor to consider. Designed for regular and wide-mouth jars. Fully customisable — set your jar opening diameter, funnel width, wall thickness, and fit clearance directly in the MakerWorld customiser. Print settings: - No supports needed - Print insert-end down or flare-down, both orientations work - PETG strongly recommended — PLA softens around 60°C, which is enough for hot jams, sauces, or anything poured warm - 2–3 walls, 15% infill is plenty Tip: If your insert is tight, increase fit_clearance by 0.1 mm at a time until you get a smooth sliding fit.