# How to Make a Code Wheel

Create a code wheel to easily translate between letters using a Cesar Cipher.

## Steps

- 1
**You need two concentric circles (one circle should be larger than the other).**Punch a hole in the middle of both and attach with a brass fastener so the top wheel (the smaller one) can move independent of the bottom wheel. - 2
**Drawing over the entire circle, divide into 26 sections.**Use a protractor to get each segment the same size -- they should be about 13.8 degrees each - 3
**Write the letters of the alphabet, in order, on both circles.** - 4
**To use, determine a number to use a cipher, for example:**4. - 5
**Turn the inner wheel that number of turns (so A >> E, B >> F, etc).**When writing the letter, look at the inner wheel and write down the letter that is matched on the outer wheel. - 6
**For additional complexity, use a cipher that changes on each letter (such as the digits of pi or the numerical digits of a sentence).**

## Things You'll Need

- scissors
- 2 paper plates or construction paper
- a crayon, pencil or marker
- paper piercer
- a brad
- a ruler.

## Article Info

Categories: Codes and Hidden Messaging