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Tenon jig to make log legs for slab tables

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Project by HalDougherty posted 07-12-2011 02:30 AM 7639 views 23 times favorited 12 comments Add to Favorites Watch

A few days ago, I saw a great blog post about making a tenon jig by (Don W) that used a router to cut tenons on round stock. It looked like a bigger version of a jig I made a long time ago to make dowels from square stock. Today I made a jig just like it, except I clamped it to my router table instead of attaching a router plate to the top. I just turned it upside down and attached two extensions to clamp it to the table. The last photo shows the tenon in a scrap block with a 1 1/2” round mortise. This face plate has a 1 1/2” hole and I also made a 2” diameter hole in another face plate. Only the 2” forster bits at the hardware store were over $30. 1 1/2” tenons will be fine. It should speed up making rustic tables and I’ll have a use for small tree limbs so there will be less waste. Look for more table and bench projects soon.

-- Hal, Tennessee http://www.first285.com





12 comments so far

View Don W's profile

Don W

15245 posts in 1257 days


#1 posted 07-12-2011 02:36 AM

cool. When I built mine I had’t built the router table yet. I’ve been going to convert mine so it works like yours does. Another project just waiting for the right moment.

-- Master hand plane hoarder. - http://timetestedtools.com

View devann's profile

devann

1735 posts in 1382 days


#2 posted 07-12-2011 05:22 AM

Cool jig. where did you get that bit?

-- Darrell, making more sawdust than I know what to do with

View BTKS's profile

BTKS

1971 posts in 2154 days


#3 posted 07-12-2011 07:41 AM

Thanks for posting!!!!
This one went straight to favorites. I plan on splitting some honey locust logs soon. The big plan is some patio benches and maybe a shave horse. Who knows, the trees gotta go, so they may as well be something besides firewood. This will be a huge help, I was going to turn them on the lathe but this will be a lot easier.

-- "Man's ingenuity has outrun his intelligence" (Joseph Wood Krutch)

View EMVarona's profile

EMVarona

437 posts in 1525 days


#4 posted 07-12-2011 01:15 PM

Very interesting. With some additions, this can be used of dowel making as well.

-- Ed "Real happiness is one that you share."

View HalDougherty's profile

HalDougherty

1820 posts in 1927 days


#5 posted 07-12-2011 02:01 PM

I bought the bit on e-bay. It came in a set of round bits from 1/4” to 1 1/2”. Any round nose bit will work, but the larger the bit the bigger the limb that can be cut.

To make a dowel jig, it needs a hole in front of the cutter to center the square blank. for a 1” dowel, measure a 1 1/8” inch square from corner to corner and cut a hole so it fits, but will still turn. Cut down one end so you can chuck it in a drill and spin it as your router cuts it. You get a much smoother result than I got on these big tenons. They tend to wobble and the limbs aren’t straight enough to use a pilot hole with them.

-- Hal, Tennessee http://www.first285.com

View Bertha's profile

Bertha

12951 posts in 1383 days


#6 posted 07-12-2011 02:09 PM

This is fantastic! Nice job.

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

View STL's profile

STL

68 posts in 1522 days


#7 posted 07-12-2011 11:31 PM

Great job! Thanks for sharing!

-- Dan Siggers, Alabama, http://www.siggerstraditionsllc.com

View Jiri Parkman's profile

Jiri Parkman

950 posts in 2502 days


#8 posted 07-13-2011 09:34 AM

Perfect. Thanks for sharing. It’s on list.

-- Jiri

View HalDougherty's profile

HalDougherty

1820 posts in 1927 days


#9 posted 07-14-2011 05:12 AM

Here’s how I cut the legs for the bench. The sawblade on my sawmill is parallel with the deck and all four legs are going to be exactly the same length in just a few seconds. After I flatten the top and finish sanding the top, I’ll make a project page to show the bench tomorrow. The top is a slab from a Bartlett Pear tree. Pear is at least twice as hard as hard maple. Then I have to make some butterfly inserts to reinforce a crack.

-- Hal, Tennessee http://www.first285.com

View dubsaloon's profile

dubsaloon

619 posts in 1484 days


#10 posted 07-21-2011 01:36 PM

Makes my brain hurt just thinking of the possibilities. That is one big bit. Great Idea!

-- The works of evil people are not the problem. It is the "Good" people standing by and watching not speaking up. Dubsaloon

View NormG's profile

NormG

4259 posts in 1694 days


#11 posted 08-03-2011 05:52 AM

Wow, great idea, thanks foe the pics

-- Norman

View Joe Lyddon's profile

Joe Lyddon

7799 posts in 2742 days


#12 posted 11-22-2011 07:41 PM

Now, THAT’s one Super GOOD IDEA!!

Thank you very much!

That forest… keeps on getting in my way sometimes!

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

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