Here is one way to make a cone from flat stock.
Make cone shape 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.
On your piece of sheet metal draw the trapezoid shaped design of your cone so that the top edge of the cone is 24 inches long and the bottom edge is 10 inches long.
In the tutorial video we re presented with a cone designed with the revolve shell and cut extrude features.
The easiest way to make a cone is to start with a semicircle then overlap the straight edges until they form a cone shape.
If you want to get more specific however you should start with a circle instead then cut a wedge out.
To mark holes or lines around the cone check holes or lines and enter number of incremetns.
When applying the insert bends feature located on the sheet metal toolbar or from the insert dropdown menu under sheet metal solidworks tells us a non linear edge at the seam of this cone is invalid.
The sides should be about 16 inches long.
Enter hole slant height up slanting edge of the cone and hole diameter and hit draw.
Things you will need lie your cone in the middle of a piece of construction paper with the top of the cone at the top of the paper.
View the cone instructions below to learn how to manually layout the flat pattern for a truncated cone in single or multiple gore sections.
Sheet metal cone calculator.
The curved steel cone calculator from chicago metal rolled products makes it easy to find the precise curved steel cone dimensions you need.
A properly shaped piece of sheet metal and an optional hanging tab make building your own cone easy and inexpensive.
Once you know how to make a basic cone you can experiment with other materials such as plastic sheeting.
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.
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 less.
You can find cone calculators online.
Make a straight line on the cone.
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 a 3 foot square piece of 24 or 26 gauge galvanized sheet metal.
