Have you ever had to divide up a circle into equal parts? Every once and a while a project presents itself that I need to equally and accurately divide a circle up into a number of equal parts. While making the banjo
I hit on a simple method that works!
I have a number of circular saw blades laying around. I use them for various projects. Turns out they are perfect for marking of divisions on something else.
Say I want to divide up this disk.
Lay a saw blade on top and start marking at what ever interval fits your needs.
A different blade and a different interval with each blade offering a lot of possibilities.
Remove the blade and you are ready to weld, paint, whatever.
Simple but effective.