I've found that you MUST prepare the edges properly. Biscuits, t & g and
dowels only help with alignment and not much strength. Use cauls or clamps
to keep the table top(field) flat while clamping. If you haven't done
anything like this before, I would suggest you get some 1 x 6 pine
boards(the cheapest) and practice your technique before you mess up some
good cherry or oak... The glued up pine panel(s) can always be used for a
shop assembly table or such.
Good jointing of the edges, then something like a Plano clamp to hold
them flat and together as they dry. If you don't have such a clamp,
sandwich them between a couple of straight bars with a light clamping
force, and use long clamps to squeeze the boards together.
I'd probably biscuit them, because it doesn't hurt and I'm usually
working single-handed to get them into the clamps. With an assistant I
might not bother.
Cut biscuit slots.
Dry fit again.
Clamp and caul.
Wait 15 mins - clean up squeeze out.
Let glue dry.
Scrape and/or Sand.
Drag into kitchen.
Apply dishes and flatware.
Put spaghetti on plates...
... you get the idea.
Something not otherwise mentioned which I have heard about, but not
personnally experienced, was the table top being aligned with biscuits, and
sanded / planed / smoothed and finished within a day or two after glue up.
Eventually little biscuit "dents" were showing up in the glossy finish along
the glue line. The explanation posed was that the glue swelled the biscuits
and surrounding wood which was then smoothed flat. Eventually the moisture
was lost and the wood shrank back to it's original dimension (at moisture
equilibrium) and the outline of the buscuits could be seen.
You will need
Lots of clamps
Lots of glue
Lots of alignment tools (biscuits, splines, etc)
hope this helps.
"Rolling Thunder" < email@example.com> wrote in message
If "seeing" would be of any help, go to the page 5 of my projects journal on
the web site below and slide on down to the trestle table section where
there is a picture or two, and a description of sorts, that may shed some
light on the process for you.
Add me to the "just glue them" list. Unless one of the boards has
a slight bend to it, and needs to be encourage to lie in plane with
it's mate, in which case I'd use dowels.
As everyone else has said, you'll want to make sure they're jointed
straight & square first. You'll also find it easier to glue up
pairs, and then glue the pairs together, etc, rather than try to
get several boards all clamped up at once.
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