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noonenparticular
 
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Default BIG edge jointing problem

Yeah, It'll be portable. I'm gonna move it from where it's being built in
the center of the room to against the wall where it's going to remain until
the next millenium.... LOL!

I don't think I'll use the pkt screws, but I kind of like your idea of the
1/2 degree off square. I'll let you know how it works.....

jc

"Pop" wrote in message
news:inwBf.3975$Jn1.319@trndny01...
Pocket screws to pull them together. Only use lag screws
instead; it'll pull in very nicely.
Also saw the joints about a half degree off square in a
"valley" fashion so the top & bottom edge pulls together tighter
when you draw up the pockets. EAsyu to do that on a table saw
with that thickness wood. Glues better, too. Use a really good
glue; expensive but worth it.

Portable bench, eh? g

HTH,

Pop

"noonenparticular" wrote in message
et...
: Big in the sense of the boards (timbers?) involved.
:
: I'm trying to edge join the two boards for my bench top. Each
board is 80"
: x 3 1/2" x 7". They're big and I need to join the 3 1/2"
edges.
:
: Here's what I've done.
: - Got the faces flat and square by using long 4" wide strips of
plywood
: screwed to the sides to form a sled. Ran it through the planer
to flatten a
: face, then removed the strips, flipped the board and flattened
the opposite
: face.
: - planed one rough edge down to mostly flat (so the bit
wouldn't have to
: take a big bite in the next step) then laid the board on its
face, screwed
: one of the straightedges to the face (actually the bottom face
so the screw
: holes will never show) then used a pattern cutting bit (bearing
on the top)
: to true half the thickness of the edge.
: - Removed the strip, flipped the board and changed to a bearing
on the tip
: bit in the router and rode that bearing against the edge
created in the
: previous step.
: - I did this to each of the two boards thinking that I would
get a nice
: mating surface. What resulted was not bad, but not the
tightness that I was
: expecting. Would like to get these tighter and some solutions
(like adding
: clamp pressure to draw the boards together during glue up)
simply won't work
: given the size of the boards.
:
: Any ideas?
:
: By the way, I'm going to use a full length 3/4" plywood spling
during glue
: up. Also, the gap on the edge at it's max is about 1/32,
although most
: spots are less or touch flush.
:
: tia,
:
: jc
:
: