How to Make a Cone

I use this method to make cones of a specific size, I mostly use it to make templates for metal or fabric.

Draw a profile of the cone you want to make. I usually use card stock as it is a bit more durable, but use whatever you have around.

If you drew a full cone please disregard

Label the base A and B and the apex D. Or not is up to you

Set a compass to DB

Using D as your center, draw an arc from B, make it longer than you might think

Measure AB, mine was 1 3/4

for me this was 1.75x3.14=5.495, I just rounded to 5.5

You want your arc to be the sum of ABxPi. In my case 5.5 inches, so I use a piece of string to measure it.

Lay string on arc and mark 5.5 inches

For my cone it was from 5.5 along the arc to D

Set compass from D to top of cone

Connect the arc to the line

I used scissors, but use what ever method works for you

here is what a full cone would look like

here is the truncated version

you might have to roll it around a bit to get it into shape. I mostly use for templates for fabric or metal so I dont worry too much at this point

finished