How To Make A Funnel Shape Out Of Sheet Metal

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.

How to make a funnel shape out of sheet metal.

For a medium funnel use half a sheet of printer paper. Roll the cone template into a cone shape starting at the wide end working toward the pivot point end. To make a large funnel use a standard sheet of printer paper. Once you have a rectangle of paper follow these steps.

You can find cone calculators online. Cut a 3 foot square piece of 24 or 26 gauge galvanized sheet metal. 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. The cone has a diameter at the top smaller than the diameter at the bottom and to accurately trace the shape onto sheet metal you need to make a template out of construction paper.

Form into an elongated cone so that the opening at the thin end is about inch in diameter. You can get three guards out of a 3x8 foot piece of metal see drawing below from zeleny s book then cut out circles. 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. 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.