You buy yourself a couple of magic glue bottles first (coupel of
bucks). One is a roller / brush / narrow nozzle for general gluing.
The other is a specialist biscuit-slot filler and wiper. They aren't
expensive, you don't need the $50 Lamello one. However biscuiting is a
rapid build task with a lot of fast glue-up involved, so it's worth
Then you glue the slots first. Keep the biscuits dry, because good
biscuits in good slots won't fit easily if they're wetted beforehand.
Oh, and buy yourself a clean _white_ rubber mallet and don't let it
get used for anythign other than carcase assembly.
Just recut. Sometimes you abandon it and recut a new slot alonglside
it. I never worry about leaving odd voids of unused slots behind.
Don't do a), because biscuits are all a standard thickness.
I've never done b), and if I were tempted to, then I'd use rectangular
biscuit spline stock instead of cut-downs. You can slide most
biscuiters sideways to cut a slot.
I often freehand, but I'd advise the straight edge. It's often quicker
(one clamp is quicker than 4 eyeballings)
I'd disassemble, but this is usually because I'd be short of space to
make the next panel.
I have a rubber "dead blow" (shot-filled) mallet of black rubber and yes
it will mark the wood, but covering it with an old heavy sock
prevents that and lets me use one of those many socks whose twin has
There is always an easy solution to every human problem -- neat,
plausible, and wrong." (Mencken)
On 13 Feb, 05:15, email@example.comNoOnSePsAtMar.org (Larry) wrote:
If you think black rubber marks the wood now, wait until someone has
used it for breaking up bitumen / emptying the cat litter tray with
it, and you didn't notice because it was already black.
With my white mallet, I can _see_ that it's clean.
I don't use my hands for this because they've often got glue on them.
D. All of the above. Lamello makes a dispenser that will place a measured
amount of glue into the slot and it is applied to the sides of the slot.
Then put in a dry biscuit.
Unfortunately, if you like to drop the biscuit virtically into the slot
rather than slide it in horizonally like I do the glue in the slot on the
mating piece sill drop out when you invert the board. In this case I paint
the inserted biscuit with glue and then add the mating piece.
I recall a thread here years ago from someone who sanded his tabletop
and the next day found that it had depressions in it, and
coincidentally, they all seemed to be right where the biskits were.
Very visible after the finish was on.
Turned out that he'd sanded within twelve hours of joining the panel.
The biscuits had swollen, expanding the wood slightly, and then
returned to normal size. He had sanded before they'd shrunk.
And at a wood show once a guy who was demoing a biscuit joiner said
that glues these days were so strong the wood fails before the glue
does, you might as well use the biscuits just for alignment, and not
put any glue on 'em.
So for my last several panels I haven't put any glue on the biscuits
or in the slots. Everyplace except where the biscuits were. Oldest one
is two years old. No sign of a problem.
It appears as though there might be more than one way to do it. :-)
When gluing up panels, there is no need for the biscuit, strength wise. In
this situation, I don't glue them either. Try making a T joint with plywood
though, and things are different. Even if the glue is stronger than the
wood, the wood that you are gluing to is only 1/64" thick (the outer ply).
In this case, glue the biscuit, it needs it.
Yeah, if I'm doing a benchtop or something from narrow stock I just use dry
bisquits as locating mechanism also. But for mdf joinery or t-joints I sure do
put glue on them. I often use bisquits in situations where they are the crucial
long-grain surface in a cross-grain joint.
firstname dot lastname at gmail fullstop com
I seem to recall some discussion here a few years ago in which
someone pointed out that gluing the biscuits introduces moisture into
the wood that can cause problems with the finish if not given ample
time to dry. And since the biscuits are on the inside of the piece,
it could take weeks for all the added moisture to wick out. In any
event, for simply joining panels, the buiscuits are purely for
alignment so glue is unnecessary, IMO.
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