Quick N Easy Circle Jig for Router.

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Forum topic by DDWW posted 09-08-2016 12:32 AM 372 views 0 times favorited 4 replies Add to Favorites Watch
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21 posts in 173 days

09-08-2016 12:32 AM

A Simple Router Circle Jig using a T-Track. The T track is mounted upside down in the jig and pulled tight against the base with a T-bolt and knob. The T track has a small bolt threaded into going out the bottom that becomes the pivot point for the circle. I cut the dado for the t-track a little wide, but it didn’t matter. The knob snugs it in good and tight. I think next time I’d cut the dado all the way through to allow for dust to escape.

This took maybe an hour to build and that included a little thinking time and filing a small ledge to thread the pivot in.

This is a take on the Jig in Bill Hylton’s Router Magic. His jig cuts a T track into the base and places pressure on down wards on the bottom of the jig to lock the pivot point.

4 replies so far

View distrbd's profile


2243 posts in 1993 days

#1 posted 09-08-2016 03:08 AM

DDWW, that jig couldn’t be any simpler,thanks for posting the pics.

-- Ken from Ontario, Canada

View woodworkerguyca's profile


30 posts in 591 days

#2 posted 09-08-2016 04:34 AM

Thanks for this, I’ve been trying to figure out how to cut a circle with a smaller diameter than my router base.

View bondogaposis's profile


4179 posts in 1898 days

#3 posted 09-08-2016 12:47 PM

Nice jig, thanks for posting.

-- Bondo Gaposis

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21 posts in 173 days

#4 posted 09-08-2016 01:37 PM

Thanks for this, I ve been trying to figure out how to cut a circle with a smaller diameter than my router base.

- woodworkerguyca

Thanks I had the same need and figured I’d finally make a simple jig instead of just using a piece of quarter inch ply to make single use Jig.

Be sure to get some double sided tape to fasten your stock down particularly the middle circle. It has to stay put as you finish cutting or your going to go off track and gouge the sides.

It is pretty simple and I was able to get it right down to the 3 and 7/8” I needed for my dust hose connector.

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