How To Layout Sheet Metal Cone

Multiply the large dia.

How to layout sheet metal cone.

Cones have several uses such as sheet metal chimney caps but the layout of a cone is puzzling to some craftsmen. High with a 24 in. Mula these numbers can be replaced with your dimensions. 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.

Here is a fast method that doesn t require higher mathematics. By the vertical height divide this product by the difference first obtained large dia and small dia. There are many different ways to lay out this pattern. Learn how to layout a cone and the for.

The formula for the cone is first you must find the difference between the large and the small dia. The example shows how to lay out a cone 6 in. This is just one way and i find that is the easiest and quickest way. Note lay out your cone directly on metal with a pair of dividers and a scribe or use a compass to lay out your design on paper and transfer it to metal.

Drill a few holes through the overlapping rectangular shape. 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. Extend lines ab and cd upward until they intersect. Roll the cone template into a cone shape starting at the wide end working toward the pivot point end.

It allows you to determine either the size of raw material needed or the number of gore sections to fit on your available material. Using the slant length as radius scribe a circle on the material and snip. Sheet metal cone calculator.