Hmmm. It appears we have a troll on our hands. Either that or
someone who has a modicum of knowledge and just likes to argue.
If you don't understand how a breadboard end's cross grain is a
different situation, forget the biscuits and just cut up some plywood
and iron on some edge tape.
Actually, the only "breadboard" I know about is for prototyping
My question was honest and I don't care for your suggestion.
As far as I'm concerned you (RicodJour) can lose the attitude and cut
up some plywood and put it up your ass.
Gee, you're a sensitive thing. Any particular word can have different
meanings based on context. Breadboard is one such word. Please note
that the group you are posting to is alt.home.repair not
alt.computer.*, which should indicate Phisherman wasn't talking about
a computer component. Your apparent inability or unwillingness to
DAGS is scary. I would have said stupid, but you're sensitive, and I
don't want to upset you any more.
There is unanimous consensus that the main purpose of the biscuit is
to aid in alignment.
You've already been told that the glued joint is plenty strong on its
You've already been told that there is some dispute whether the
biscuit adds any strength at all.
You apparently don't understand that a biscuit slot is appreciably
bigger than the the biscuit and that woodworkers glue does a piss poor
job of filling gaps.
Your gut feeling that a biscuit has *got* to add strength means
exactly nothing. You obviously don't know about biscuits or you
wouldn't be asking. You don't know about the strength of edged glued
joints or you would realize the inanity of trying to make a joint that
is already stronger than the wood even stronger.
If you had asked about the additional strength in a biscuited edge to
end joint, that would be a different matter. That question has also
Perhaps you aren't aware that you can Google specific newsgroups and
that such questions as yours have already been asked and answered
repeatedly. You can get your question answered and all of the
background with competing viewpoints in an easy to digest thread
without waiting for replies.
I'm sorry if you feel I've been rough on you, but I'm all out of the
little Gerber's bottles and bibs. I don't particularly feel like
spoon feeding. Your question has been answered. If you don't like
the answer, you've been given more than enough information to search
to your heart's content until you find an answer that meets with your
Might look up "breadboard" via google but the simple answer is it's the
generic name for the typical breadboard construction (hence the name,
obviously) of a lengthwise piece across the end of a piece at
cross-grain direction. Owing to the tendency of wood to move
preferentially perpendicular to grain direction as opposed to with
grain, this "cross-grain" joint is prone to failure if attempt to glue
it the whole length. Hence, one will find many techniques to get around
the problem--pinning only in the middle, tenons w/ oversized mortises,
screws in slotted holes, etc., etc., ... The unglued biscuit would be
similar in concept to the loose M&T.
BTW, please trim to reasonable context...
Breadboard ends are cross-grain with the table. Without some movement
the table would split or crack. I use a tongue and groove joint but
you could use loose biscuits. Shorter (maybe less than 10")
cross-grain joints usually don't present an issue with seasonal wood
If the edges of your boards aren't straight it won't matter what size
you use because the joint will most likely fail.
Flat, not straight. Obviously they have to be straight or the joint won't
fit; but often they aren't flat, and the biscuits (and an occasional clamp)
force them to comply.
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