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Self Centering Mortise Jig

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Project by HankLP posted 11-24-2018 06:41 AM 1755 views 6 times favorited 8 comments Add to Favorites Watch

This jig will mount in an end vise or moxon vise, or the inexpensive clamp on vises shown here. The router plate is 1/4” MDF, and the rails are 3/4” ply. There are two 3/8” dowels stubbed out of the bottom of the plate which follow the grooves routed in the guide rails – one on each side of the work piece. The work piece is clamped between the guide rails, and the tops of all three pieces made tight and even. The router has a plunge base, but the fixed base is more compact, and easier to work with as the router is held steady by the guide pins. The test pieces were “slapped” together in 10 minutes. The tenon cheeks were cut out on the on the table saw with a miter gauge, and all fit up tight and square.

I just purchased the Grizzly T27139 trim router for this project and plan on posting a REVIEW soon.





8 comments so far

View Redoak49's profile

Redoak49

4100 posts in 2436 days


#1 posted 11-24-2018 11:50 AM

Useful and interesting….

View stefang's profile

stefang

16711 posts in 3782 days


#2 posted 11-24-2018 12:24 PM

Clever and uncomplicated jig. Nothing better! Thanks for sharing!

-- Mike, an American living in Norway.

View oldrivers's profile

oldrivers

1769 posts in 2014 days


#3 posted 11-24-2018 12:24 PM

Very nice, practical jig that will not only be a great time saver, but a joy to use.

-- Soli Deo gloria!

View DadofThree's profile

DadofThree

12 posts in 266 days


#4 posted 11-24-2018 02:47 PM

Really interesting. I haven’t seen a design like this for mortises yet. Great job!

-- Alfonso, Olympia, Washington

View waho6o9's profile

waho6o9

8702 posts in 3025 days


#5 posted 11-24-2018 02:58 PM

Brilliant ideas!

View Ivan's profile

Ivan

14759 posts in 3315 days


#6 posted 11-24-2018 04:06 PM

Very interesting concept…another great idea about that kind of jigs.

-- Ivan, Croatia, Wooddicted

View Jim Jakosh's profile

Jim Jakosh

22995 posts in 3553 days


#7 posted 11-24-2018 10:18 PM

That is a great idea. It will be a favorite for a later date!

Thanks, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View swirt's profile

swirt

4060 posts in 3420 days


#8 posted 11-25-2018 03:01 AM

Very clever design.

-- Galootish log blog, http://www.timberframe-tools.com

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