parametric funnel with or without stand

thingiverse

A versatile funnel where key parameters can be easily modified. You either receive a special stand with it or not. When using lightweight items like a few tea leaves, choose the simple stand. The tripod stand should be much more stable, but I haven't printed one yet. I wanted a funnel with a relatively low throat ratio to fill paper tea filters efficiently. Tea leaves often get stuck in the necks of supermarket funnels. Set the sizes in the customizer first. Then, when done, switch from "preview" to "render" and click "create thing". You should receive two STL files, one empty when you switch to the funnel-only style. Print Settings Printer: CTC Bizer Rafts: Doesn't Matter Supports: No Resolution: 200 microns Infill: 20% Notes: A brim or raft may be useful for the funnel as its own brim isn't very wide. Post-Printing You'll need one or three sharpened standard-sized pencils as main support elements. Insert them sharp-end-first into the base, tear off, or saw off the erasers if your pencils came with them, and place the funnel on top of the pencils. The pencil length determines the receptacle height you get. Use a pencil sharpener to lower the funnel until you've reached the right height. Ensure all pencils have the same length. How I Designed This I re-uploaded the SCAD file with three main options: no stand, simple stand, and tripod stand. I fixed the connection between the funnel's pencil holder and the vertical plate. Also, I fixed the connection between the stand plate and the vertical bit twice. I uploaded slightly larger STL files with the fixes. I made the handle on the standless funnel bigger, added a support for that, and changed the width of the conical part to fix a problem where there was a gap between the perimeters that reduced strength. This is a partial re-design. Preview and render three STLs. A 0° tip angle now means flat (previously called 90°). Another re-design: I smoothed out the joint between the cylindrical neck and the conical funnel proper. This part is also available on GitHub. Older versions are still available there. Food Safety Concerns When funnelling foodstuffs, use PLA or food-grade PLA if you're concerned about safety. Or maybe PETG. Clean your nozzle once to get rid of mineral oil and other residues. When using an oiler, choose a suitable oil like vegetable oil or Ballistol oil. The funnelled material only comes into contact with the printed parts for a short time, so it shouldn't be affected by plastic too much, especially when using dry stuff. These two articles provide more information on food safety: 10 Things You Need to Know About 3D Printing & Food Safety Food Safe Video It's ultimately up to you. I take no responsibility.