A router is a more precise way to cut a circle, but it takes some time to set up a jig. If you’re willing to drill a hole through the top of your table saw, you can start cutting circles with it ...

A pencil, a jigsaw, a router can all work well to make a circle with a trammel arm jig. I used to dread making circles until I found out I could attach my wood router to a jig.

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Now we’re embarrassed that we couldn’t come up with a solution as eloquent and easy to use as this circle cutting router jig which [Grays42] built. He’s using a small trim router for the job.