How to find the center of a circle

Step 4 Use more chords for accuracy

If you're not that confident of your measurements, then you can use as many chords as you like, until you're happy with the result.

Once you have the center marked you can use this information for other things, like drilling a hole in the middle, drawing concentric rings etc.

That's it, short and sweet.

Comments

[Jbouquet12]

I just got the biggest kick out of this it works perfecto.

[clicclic]

Thank you so much for this helpful technique. I wish I was smart enough to figure this out on my own; I've been stressing about perfectly centered holes on a number of recent projects and didn't know how to find the center. Thanks again - a huge help! clicclic

[bunglesmate]

Thanks for the comments. I can't take credit for this though, as I'm sure it was drummed into my skull at school. I do try to think of things some people know as being so obvious they assume everybody must know it.

[buteman]

Well you put it here and it is something many will want to do.
I am starting a project in which I will need the centers of some circles.
I was going to do what you have done as part of my own instructable but now I will just give a link to this.
Thanks