| Project by Scott | posted 155 days ago | 3733 views | 51 times favorited | 28 comments | ![]() |
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This jig works in conjunction with your router and its edge guide. It has a fixed stop on one end and an adjustable stop on the other end to limit the length of the mortise. The guide helps to support the router and keep it square. The tabs on top of both long pieces of the jig make it very easy to align it flush with the workpiece. You can use this on any length workpiece, short or long.
If the mortise is closer to one end of the workpiece, and you need to make several pieces identically, then you can add another adjustable stop, so you can easily get repeatable results. See photo 3.
If the mortise is wider than your largest bit, then just move the router to the other side of the jig with the stops in place and cut the other side of the mortise slot.
The mortise jig is made from 1×3 dimensional lumber, so really 3/4×2.5. It is the premium pine from Lowe’s hardware, and it is very straight. I glued two together for each rail. The length is 24 inches.
-- Scott in North Carolina
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28 comments so far
majuvla
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1583 posts in 1038 days
#1 posted 155 days ago
It’s always good to see fresh ideas for jigs!
-- Ivan, Croatia, Wooddicted
a1Jim
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87268 posts in 1748 days
#2 posted 155 days ago
Very creative a way cool design simple but very effective.
-- W James Brokenbourgh Custom furniture maker http://artisticwoodstudio.com/
Sarit
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472 posts in 1311 days
#3 posted 155 days ago
That’s really cool. I keep meaning to build a mortising jig. This has given me some ideas already.
Scott
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78 posts in 438 days
#4 posted 155 days ago
Thanks for the comments! Thanks Jim, I appreciate all your comments!
-- Scott in North Carolina
ptofimpact
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159 posts in 487 days
#5 posted 155 days ago
Scott, another great jig, I marvel at how creative you are, and how simple you keep it, thanks for sharing
-- Pete in NC
Scott
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78 posts in 438 days
#6 posted 155 days ago
Thanks Pete, I think my brain works that way. I like puzzling over an idea and stripping it down into the simplest elements.
-- Scott in North Carolina
Sergio
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288 posts in 863 days
#7 posted 155 days ago
That can be useful. Thanks for sharing your idea!
-- - Greetings from Brazil - --
MJCD
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348 posts in 542 days
#8 posted 155 days ago
Scott:
1st – nice work – I’m going to try to replicate this, if you don’t mind.
2nd – while I am very interested in you jig, there was an advertisement for T-Shirts – to the right hand side of your post – which was particularly captivating. Perhaps we should ask Lumberjocks to post our work with dull and boring advertisements … less competition for our diminished attention span.
MJCD
-- Lead By Example; Make a Difference
kdc68
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861 posts in 448 days
#9 posted 155 days ago
Nice jig….looks like an easy way to make mortises
-- Measure "at least" twice and cut once
Scott
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78 posts in 438 days
#10 posted 155 days ago
MJCD – Yes, help yourself, I hope you like it.
I too have seen that ad, so I know exactly what you mean. It didn’t stay for long, so they must figure the Home Depot ad sitting there now is just as appropriate on this website!
-- Scott in North Carolina
sawdustmaster
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70 posts in 997 days
#11 posted 155 days ago
Can you get me one by Christmas?
-- --Now we are surrounded sir. "Excellent private, now we can attack in any direction."
Scott
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78 posts in 438 days
#12 posted 155 days ago
sawdustmaster – Wish I had that kind of time. Man if only my project list would shrink, but I add to it faster than I crank them out !!!
-- Scott in North Carolina
Milo
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802 posts in 1490 days
#13 posted 155 days ago
What is picture three of? And what does the dado do in the right side of the jig in picture four?
Thanks,
Milo
-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...
Scott
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78 posts in 438 days
#14 posted 155 days ago
Milo, in picture three it shows the stop that you can optionally insert. If you have a very long board with the mortise in the middle of it then you would just remove the stop, as shown in photo 1. If you have a mortise near the end of the board then photo three shows that you can just press the board up to the stop. Cut the mortise, then if you have more boards with a mortise in the same place, just insert the new board and press it against the stop, and you are ready to cut another mortise without doing any measuring.
In photo 4, on the right side of that photo, that is the stop that is shown in photo 3. I just slides in a groove and tightens with a knob on the outside, and the stop rides on the inside.
I hope that explains it, let me know if not.
-- Scott in North Carolina
mafe
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8057 posts in 1260 days
#15 posted 155 days ago
One more clever and simple jig.
Love it!
Best thoughts,
Mads
-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.
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