Ultimate customizable Funnel | With air Vent

Stop the "Glug-Glug"!
Standard funnels often bubble up and splash. This design solves that problem with an integrated internal air vent (like a straw) that runs from the tip of the spout to the top rim. This allows air to escape effortlessly while you pour liquid in.

I designed this model to be fully parametric. Whether you need a tiny funnel for essential oils, a medium one for the kitchen, or a massive one for changing car oil, you can generate the exact size you need.

Key Features:

• Internal Air Vent: A tube runs up the inside wall of the spout. This allows air to escape  without blocking the liquid flow.
• Diagonal Spout Cut: The tip is cut at an angle (configurable) to ensure liquid flows out even if the spout is pressed flat against the bottom of a container. Note: The cut is oriented so the air vent remains on the longest side to keep the airway open.
• Sturdy Hanging Loop: A flat, reinforced tab with a hole for hanging the funnel on a hook or pegboard.
• Print-Ready: The model is oriented for easy printing without supports.

How to Customize:

Press the green Customize button.

1. Funnel Dimensions

• top_diameter: The width of the wide opening at the top.
• spout_diameter: The width of the stem that goes into the bottle. Measure your bottle neck and make this 1-2mm smaller.
• cone_height: How tall the cone part is.
• spout_height: How long the stem is.
• wall_thickness: How thick the plastic is (1.6mm is sturdy).

2. Air Vent / Straw

• enable_vent: Turn the anti-glug feature on or off.
• vent_hole_diameter: The size of the air hole (3mm is standard).
• vent_wall_thickness: How thick the straw walls are.

3. Hanging Loop

• enable_loop: Add the tab for hanging.
• loop_hole_diameter: Size of the hole for your hook/nail.
• loop_thickness: How chunky the loop is.

4. Spout Cut

• enable_diagonal_cut: Slices the bottom of the spout at an angle.
• cut_angle: The sharpness of the cut (30° is standard).

Also check out some of my other 160+ designs: 

John_M | Published - MakerWorld