Funnel

thingiverse

Probably not the most efficient use of a 3d printer. Here is a configurable funnel for those times when you just need one. It prints upside down so the top is against the print bed etc. intWall = 0.6; (probably best to keep in ratio to print resolution) intTop = 30; (radius of wide part - prints up against bed) intBottom = 5; (radius of the spout and narrow end of cone) intSpout = 30; (spout length) intConeHeight = 30; It's very basic. Feel free to steal and change however you wish