How To Make A Funnel Shape Out Of Sheet Metal

Your circle will be 18 from the center of the circle to the edge i e 36 in diameter when flat when formed into a cone the finished diameter will be.

How to make a funnel shape out of sheet metal.

Here is one way to make a cone from flat stock. For a medium funnel use half a sheet of printer paper. Making the funnel neck step 1 draw a wedge shape on the sheet metal making it 4 inches wide at the top and 2 inches wide at the bottom and 6 inches in length. You can find cone calculators online.

For small funnels fold a sheet of printer paper twice so you end up with four rectangles and cut those apart and use separately that s what i m using here. You can get three guards out of a 3x8 foot piece of metal see drawing below from zeleny s book then cut out circles. Drill a few holes through the overlapping rectangular shape. Once you have a rectangle of paper follow these steps.

Roll the cone template into a cone shape starting at the wide end working toward the pivot point end. Cut out the cone template from your sheet metal using tin snips and file the edges smooth of any burrs of rough sections with your file. To make a large funnel use a standard sheet of printer paper. Form into an elongated cone so that the opening at the thin end is about inch in diameter.