How To Cut A Cone Shape Out Of Sheet Metal

Sheet metal cone calculator.

How to cut a cone shape out of sheet metal.

Drill a few holes through the overlapping rectangular shape. This is just one way and i find that is the easiest and quickest way. Enter top width bottom width and height of the cone see diagram and hit calculate to draw a full scale printable pattern template to mark out the cone. 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.

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. The easiest way to make a cone is to start with a semicircle then overlap the straight edges until they form a cone shape. Step 5 roll the template into a cone shape overlapping the sheet metal by 1 2 inch then drill a few holes along the seam and seal it closed by placing rivets in the drilled holes. To mark holes or lines around the cone check holes or lines and enter number of incremetns.

Cut out your cone template from the sheet metal using your tin snips then file the edges smooth to avoid cutting yourself or someone else with the cone. View the cone instructions below to learn how to manually layout the flat pattern for a truncated cone in single or multiple gore sections. Overlap one cut side onto the other. Beginning at the cut push the pieces of sheet over each other.

If you want to get more specific however you should start with a circle instead then cut a wedge out. Depending on how deep you want the cone stop where needed. As you do this you will see the circle begin to contract into a cone. 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.