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table top glue up

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Forum topic by Guss posted 01-06-2012 07:49 PM 1531 views 0 times favorited 10 replies Add to Favorites Watch
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Guss

94 posts in 1906 days


01-06-2012 07:49 PM

Hi I’m looking to make a table top for a collapsible table that i use for my craft shows. I’m going to use a ambrosia maple. My question is what is the best way to glue up my top? Is it best to use dowels, biscuits pocket holes, butt joints? I got a reversible glue joint bit in my cabinet bits is that a good way to go I’m going to put a walnut trim around the out side so i wold be able to hide the joint? is there a better way that i didn’t mention?


10 replies so far

View CharlieM1958's profile

CharlieM1958

16242 posts in 3683 days


#1 posted 01-06-2012 08:02 PM

Simply butted together, the glue joints will be stronger than the wood itself. Biscuits and dowels can sometimes br handy for alignment purposes, but are not necessary for strength.

Use clamping cauls to keep things lined up, and you’ll be fine.

-- Charlie M. "Woodworking - patience = firewood"

View PurpLev's profile

PurpLev

8523 posts in 3113 days


#2 posted 01-06-2012 08:08 PM

+1 for simple butt joints. unless necessary I would not use biscuits or anything for alignment as they can swell at times and create bumps in the glue lines. they do work great for gluing face frames on cabinets though.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View Clint Searl's profile

Clint Searl

1533 posts in 1826 days


#3 posted 01-06-2012 08:43 PM

Good advise so far, except I always use biscuits for alignment, every 12’-18”. They won’t swell if they’re not glued in. And don’t slobber the joints with glue; a little goes a long way.

-- Clint Searl....Ya can no more do what ya don't know how than ya can git back from where ya ain't been

View Guss's profile

Guss

94 posts in 1906 days


#4 posted 01-06-2012 09:03 PM

k so is it easier to use biscuits for alignment of a reversible glue joint? would you run the boards thorough a planer before or do you glue up a couple and run them through the planer?

View CharlieM1958's profile

CharlieM1958

16242 posts in 3683 days


#5 posted 01-06-2012 09:14 PM

What is the overall size of this tabletop going to be?

-- Charlie M. "Woodworking - patience = firewood"

View Guss's profile

Guss

94 posts in 1906 days


#6 posted 01-06-2012 09:18 PM

its going to be 8 X 3’ 6” with folding legs

View GMman's profile

GMman

3902 posts in 3162 days


#7 posted 01-06-2012 09:21 PM

Same as Charlie

View CharlieM1958's profile

CharlieM1958

16242 posts in 3683 days


#8 posted 01-06-2012 09:26 PM

That’s a pretty big wooden table to be moving around!

I don’t know how wide the stock is that you are working with, but I would probably glue it up in sections that will fit through your planer, the glue the planed sections together.

I’m not sure what you mean about a reversible glue joint.

Also, you mentioned in your original post that you intend to put a walnut trim around the tabletop. I hope you have a plan to deal with moisture-related wood movement.

-- Charlie M. "Woodworking - patience = firewood"

View casual1carpenter's profile

casual1carpenter

354 posts in 1940 days


#9 posted 01-07-2012 03:20 AM

Guss, I think Charlie and others are saying a simple butt joint, straight square edges. Dowels or biscuits might be used for alignment, but are not necessary for additional joint strength. a proper square edge butt joint should be stronger that the surrounding wood itself.

That reversible glue joint bit is designed to give the joint more surface bond area and different failure properties. It also is supposed to help with alignment, provided it is set up right, which can be a lot of test cuts, AND your lumber is accurately surfaced 4 sides, otherwise if the router cut wanders, you will have mismatch that clamping cauls will not take out. Found that one out the hard way.

Charlie also mentioned you should plan for wood movement. There was a post here a few days ago by mark, http://lumberjocks.com/topics/33343 that you might find interesting. shrinkulator?

View Guss's profile

Guss

94 posts in 1906 days


#10 posted 01-07-2012 04:49 AM

thanks guys! i think im going to use a couple of biscuits for hepling the alignment and just but joint it. as for movement thats some good informatino. Im thnking instead of suing a solid trim piece on the end. cutting the walnut the same width of the boads that im going to use to glue up the top. then using dowls and gluing them to the end of the boards with the grain in the same direction. correct me if im wrong but that should allow for the pannel movement? it wont be a true trim but the contrasting colors will give it the look of trim

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