How To Make A Frustum Out Of Sheet Metal

Pattern for making a cone frustum from sheet metal hi i am hoping to make a frustum a cone with its end chopped off which will act as an amplifier horn for an noise instrument i am building.

How to make a frustum out of sheet metal.

I am trying to build a setpiece that requires a top shaped like a conical frustum a cone with the top cut off made out of galvanized steel sheet metal. It allows you to determine either the size of raw material needed or the number of gore sections to fit on your available material. Surface area of a frustum duration. Draw a center line through the cone extending well above the cone.

For material i have a 10ft roll of galvanized sheet metal 20in in width. Creating a pattern to make a cone frustum of a cone step by step instructions step visual aid 1. Draw the shape you want to make. 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.

This video tutorial show how to flatten a cone into sheet metal. A cone with a 6 diameter base a height of 5 inches and a top diameter of 3 50 inches. The base radius needs to be 16 in. One cuts out one of the 50 faces and drill say a 12mm.

You cut out a sector of an annulus and roll it up to make the curved surface of the frustum. Do not score or fold the fold line this template to keep seam smooth. The curved steel cone calculator from chicago metal rolled products makes it easy to find the precise curved steel cone dimensions you need. In that case it s called a frustum.

If you d like a real cone just use zero for the top diameter. Jonathan evans 21 587 views. A cone optionally with the top cut off. View the cone instructions below to learn how to manually layout the flat pattern for a truncated cone in single or multiple gore sections.

Let the major radius of the sector be s its minor radius be s s its central angle t in radians the height of the. Suppose you want to build a frustum of a right circular cone out of some flat material perhaps paper or metal. I will cut a flat shape from sheet metal before bending and welding it to form the frustum. The layout may either be done on the material.

Sheet metal cone calculator.