Cheap Center Finding Tool

[Levent Suberk]

This simple device can find the center of any round object. Glue a straight ruler on 45 degree triangle as shown. Ruler must be glued on exactly between on 90 degrees corner and center of long side of triangle. Place straight ruler on round object and draw a line. Then turn device and draw a second line. The intersecting point is the center.

 

[Jimsky]

...or use this method.

1. Step 1: Draw a Chord Across the Circle. Draw a line across the circle near the edge so it cuts the circumference in two places. ...
2. Step 2: Find the Mid Point of the Chord. ...
3. Step 3: Repeat Step 2 for Another Chord. ...
4. Step 4: Use More Chords for Accuracy.

...or jus use the tool

 

[Brewerpaul]

Or one like this. I use one for wood turning and it works fine.

https://www.acehardware.com/departm...CR0Q0fFb0XKhA08TgnhoCp5MQAvD_BwE&gclsrc=aw.ds

 

[Donnie]

Well, that is a nice DIY - I have to remember that when I am in a hurry. Other suggestions are well taken too