I made a simple center finder for drilling holes and turning round stock. I drew concentric circles with a fine-tipped Sharpie mounted in a compass on the inside layer of a lamination sheet. (I recommend practicing making circles on some scrap paper before going to the clear sheet, especially if it has been awhile since you’ve used a compass. Yup, personal experience.)

I then sent the lamination folder through the lamination machine to seal in the drawing and make it more rigid, used the sharp point of the compass to poke a hole in the center, and scissors to cut out the circle. By lining up the edges of the circle with the wood, I can mark the center.

There are commercially prepared center finders, but this is an easy and cheap way to make one if you have transparent material available.
(Part 2 of 8 in this blog series)
