LumberJocks

Tenoning Jig

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Project by SawdustTX posted 10-24-2017 02:08 AM 1175 views 6 times favorited 5 comments Add to Favorites Watch

DIY Tenon jig I built to make my dining chairs .

Design:
- 3/4” hard maple stock
- Knob is 3/8” maple, with the handle glued in a dado in the round plate.
- Sliding Base with a runner that rides in the tablesaw miter gauge slot
- L-shaped upright holds the stock for the cut.
- L Upright is a horizontal plate and a vertical stock holder, joined with a dado and 4” corner blocks.
- the corner blocks have notches cut in them to create clamping surfaces for short stock
- Vertical plate of the L Upright has a stop rail along one edge to hold the stock vertical.
- Horizontal plate of the L upright has a dado on the bottom that rides on a rail in the base to adjust the tenon width while always staying square.
- A carriage bolt runs up through the base, through the horizontal plate of the L upright, and into a T-nut in the knob
- A clamp is used to hold the stock against the vertical plate and the stop rail.

What I did wrong:
- Thought I’d glued up everything perfectly square, but discovered the stop rail and the vertical plate were BOTH slightly off vertical. Since I glued it all together I can’t adjust anything, so to level it I had to glue formica “shims” on the bottom. If I did another one, I’d attach the stop rail with screws from behind, so it could be tweaked to perfectly vertical once on the saw.





5 comments so far

View tyvekboy's profile

tyvekboy

1701 posts in 2852 days


#1 posted 10-24-2017 02:15 AM

Just a FIY. Plastic Gift Cards make good shims in the shop. They are 1/32 inch thick.

-- Tyvekboy -- Marietta, GA ………….. one can never be too organized

View SawdustTX's profile

SawdustTX

265 posts in 2163 days


#2 posted 10-24-2017 02:36 AM


Just a FIY. Plastic Gift Cards make good shims in the shop. They are 1/32 inch thick.

- tyvekboy


You mean these? :) If I live to be 150 I might actually use them all. Also good glue spreaders and squeegees.

View htl's profile

htl

3171 posts in 999 days


#3 posted 10-24-2017 02:41 AM

”“What I did wrong:
- Thought I’d glued up everything perfectly square, but discovered the stop rail and the vertical plate were BOTH slightly off vertical. Since I glued it all together I can’t adjust anything, so to level it I had to glue formica “shims” on the bottom. If I did another one, I’d attach the stop rail with screws from behind, so it could be tweaked to perfectly vertical once on the saw.””

I found out the same thing last week building my tread making jig, It doesn’t pay to glue and nail it all up till you’ve tested and got everything just right.
I’ll be using screws from now on till I’m sure I got it and hey it’s all screwed up so why touch it it’s working. lol

O!!! and nice jig too!!!

-- There's a hundred ways to do anything, alot depends on the tools at hand.

View helluvawreck's profile

helluvawreck

29208 posts in 2706 days


#4 posted 10-24-2017 07:07 PM

You did a nice job on this tenoning jig.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

View Grahambo's profile

Grahambo

15 posts in 1731 days


#5 posted 10-24-2017 11:17 PM

I think I use as much blue painters tape for shimming as I do for painting.

Nice jig!

-- He who laughs last, thinks slowest.

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