Circle Jig for Router

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Project by HuckD posted 08-30-2015 04:12 PM 3295 views 28 times favorited 5 comments Add to Favorites Watch

This is a simple circle cutting jig for my router. I’ve used the kind that replaces the foot plate on the router but it’s just so inconvenient mounting it to the router. This one slips into the two guide on the router base quickly and works great. The holes for the two thumb screws in the inner block of wood and the center hole for the threaded rod in the outer block are just threaded into the oak with a tap. Turning the threaded rod moves the outer block with the pivot point in or out which gives a micro adjustment to the circle diameter.

More info on this may be seen in the video HERE.

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5 comments so far

View BurlyBob's profile


3454 posts in 1683 days

#1 posted 08-30-2015 07:10 PM

That is a slick little jig . I might have to copy that one.

View kiefer's profile


4873 posts in 2084 days

#2 posted 08-31-2015 01:39 AM

Good design Earl I like it !
I will keep this one in my memory bank .


-- Kiefer

View HokieKen's profile


1517 posts in 556 days

#3 posted 08-31-2015 12:24 PM

Very nice design. I like the small, compactness of it and the implementation of the micro-adjust is extremely well done. I don’t like my current jig and I think I just found the replacement for it:) Even better is that I have all of the parts so it won’t cost me a dime! Thanks for sharing this great design.

-- Kenny, SW VA, Go Hokies!!!

View onecarwallace's profile


17 posts in 1135 days

#4 posted 08-31-2015 01:21 PM

This looks way better than the jigs that replace the base plate. I’m definitely making this for myself. Thanks!

View Mean_Dean's profile


4930 posts in 2565 days

#5 posted 08-31-2015 11:57 PM

Great idea for a circle cutting jig! May have to borrow this idea, too.

-- Dean

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