Sheet Metal Funnel Layout

The formula for the cone is first you must find the difference between the large and the small dia.

Sheet metal funnel layout. View the cone instructions below to learn how to manually layout the flat pattern for a truncated cone in single or multiple gore sections. The rules are simple. Cone layout formula book covers. Sheet metal cone calculator.

Multiply the large dia. For truncated cones the lengths are to the theoretical point c 1 c 2. The pencil will make the circle and the slight indentation where the compass has been anchored should be noted. 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.

By the vertical height divide this product by the difference first obtained large dia and small dia this will give you the length of the center line you need from the top of the cone to the intersecting point a. Square based pyramid development https youtu be 3h9udy67nq8 pt3. Step 1 draw a circle on the sheet metal with a pencil compass. The layout radius is the length of the side of the cone.

Drill a few holes through the overlapping rectangular shape. Frustrum of a cone development h. Roll the cone template into a cone shape starting at the wide end working toward the pivot point end. Sand the metal where it overlaps and sand the edges of the metal smooth.

This is just one way and i find that is the easiest and quickest way. 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. The flat layout angle is determined by the circumference of the finished cone divided by the circumference of the layout circle from radius 1. It allows you to determine either the size of raw material needed or the number of gore sections to fit on your available material.

There are many different ways to lay out this pattern. Sheet metal bender sheet metal work aviation furniture interesting drawings metal fab metal tools metal projects metal buildings metal working.