Table saw binds ripping PT 2x6
blueman
days back. Now like most of the PT in the borg, the wood was pretty
damp and clammy when I got it and it only had a couple of days to dry
out in my basement.
When I tried ripping it on my $500 Craftsman Table Saw (1992), the
blade started to slow down and finally bind after ripping about 10
inches. This happened with or without using the splitter and
independent of the height of the blade. I ended up having to rip it in
2 passes and even then it seemed to struggle a bit on the second pass
(with the blade all the way throught the stock).
I had never had this problem before with regular wood.
Is this common with PT (especially if not fully dry) or is this more a
sign of a misalignment or lack of power?
Mike Marlow
"blueman" <NOS...@nospam.com> wrote in message
news:m2lk9ip...@consult.pretender...
Probably not a sign of a lack of power, and likely not a sign of
misalignment if you don't have the problem cutting well dried woods
(hardwoods especially) of similar size. Wet woods will show up a dull(ing)
blade faster than dry woods, and the type of wood you're cutting is beyond
wet. You've probably chosen a worst case with that 2x6. You can try using
something bigger than your splitter to wedge the kerf open. It's likely
that the splitter isn't keeping it open enough owing to how wet the wood is.
If that does not work, I'd try a new blade. I would not be too quick to
look at the saw though. A lot of very capable saws take the blame for other
problems that really are not the blame of the saw.
--
-Mike-
mmarlo...@alltel.net
Chip Buchholtz
: When I tried ripping it on my $500 Craftsman Table Saw (1992), the
: blade started to slow down and finally bind after ripping about 10
: inches.
I had this happen when sawing wood with knots. The kerf pinched shut
on the blade and stopped the blade from turning (on my underpowered
contractor saw).
--- Chip
Phisherman
You may need a table-saw tuneup. Make certain that the blade is
parallel to the fence and miter slot. Sometimes wood will have
internal stresses which a splitter and feathers boards will help. Wet
wood cuts very differently than kiln-dried.
EXT
teeth, the sawdust was not clearing the teeth causing binding. Changed to an
old original carbide blade that had only 8 teeth (it was made this way) and
it cut like a dream. The huge gullet between the 8 teeth cleared the sawdust
and made for easy cutting.
"blueman" <NOS...@nospam.com> wrote in message
news:m2lk9ip...@consult.pretender...
nailsh...@aol.com
> You can try using something bigger than your splitter to > wedge the kerf open. It's likely that the splitter isn't >keeping it open enough owing to how wet the wood is.
Couldn't agree more. There is a lot of stored tension in those wood
fibers, and when the moisture starts to leave that wood will warp on
its own. Don't believe me? Take one of those treated boards out in
the yard and leave it there in the grass on a hot day. Most of the
time you will come back to a nice canoe shaped board.
When you cut it, the redistributes that tension immediately. When we
used to cut the square ballusters on the job out of ripped 2X6s, by
the time we cut from one end of the other on a 10' piece, it was not
unusual for hte piece to be clamped closed, or for the ends of the
wood to be 2-3 inches different from each other.
I don't build decks anymore, because all I could get was nasty wood.
We have a two large PT plants on the outskirts of town, and they drop
ship to all the local lumberyards. No exaggeration here, you could
squeeze the treatment material and water out of the wood with your
fingernail on some of that stuff. You can crosscut most of that stuff
and see foam or water around your cut. Pure crap.
The splitter most likely won't keep open the slit left by the blade
kerf enough to keep the blade from binding. When we cut a piece like
that, we used little wedges a coupld oc inched long that were about
3/8" to 0" placed in the kerf to keep the blade clear.
> If that does not work, I'd try a new blade. I would not be >too quick to look at the saw though.
Yeah, even those gawdawful stand mounted tornadoes with those
universal motors have a surprising amount of power. Surprisingly, we
had better luck ripping and (not crosscutting) with cheaper, heavier
blades with wide kerfs.
All our Freud blades have small teeth and low kerf, and they didn't
work nearly as well as an Oldham with heavy, wide kerfed teeth. I am
thinking it was the wider kerf and the chips/chunks/pieces that thing
chews out rather than "sawdust".
A shot of WD40 on both sides of the blade didn't make it cut better,
but it did help keep the resin buildup down.
Como siempre, YMMV.
Robert
Swingman
> I don't build decks anymore, because all I could get was nasty wood.
I no longer use anything but composite material for decks and porch/balcony
floors ... and that includes "wooden" rails and balusters.
--
www.e-woodshop.net
Last update: 10/25/07
KarlC@ (the obvious)
Brian Henderson
>I no longer use anything but composite material for decks and porch/balcony
>floors ... and that includes "wooden" rails and balusters.
Exactly, every deck I've done in the last couple years has been done
with Trex or a similar composite product, not only because of the ease
of construction, but the years of nearly maintenance-free use. I
can't imagine why you'd want to use real wood for a deck these days.
nailsh...@aol.com
> I no longer use anything but composite material for >decks and porch/balcony floors ... and that >includes "wooden" rails and balusters.
For some reason, composites have never really caught on here and there
are only a couple of reliable suppliers. I don't know why... I guess
folks like the feel of cupped wood, popped fasteners and splinters
beneath their feet. I personally just got tired of going back to the
decks with my belt sander and some 80 grit along with some 3 1/2
screws to smooth out the deck surface.
And the fighting the shrinkage across the width.... yikes! You could
lose a small dog in some of the joints I have had open up, and I lever
the deck boards over and screw them closed. So the boards are
straight, but still open too far for my taste at the lateral edges.
For some strainge reason, ipe isn't that popular, either. I actually
think composite looks better than ipe, and for the price, I would go
composite. A few leaves, some kid wear, some muddy foot prints, a
little dust, a little mold... the composite cleans off with a hose
and still looks better than the ipe (to me!) and certainly better than
face checked PT YP.
Robert
Swingman
> Exactly, every deck I've done in the last couple years has been done
> with Trex or a similar composite product, not only because of the ease
> of construction, but the years of nearly maintenance-free use. I
> can't imagine why you'd want to use real wood for a deck these days.
I've been using "Weatherbest" for the decking lately, and "ChoiceDek"
components for rails and balusters (the latter because they match the
Southern architectural style we primarily use, you can run over to any BORG
and get what you need of the ChoiceDek quickly, and it paints _white_ nicely
(after priming) ... I'm not a fan of their Choicedek decking however).
The Weatherbest decking is pricey upfront (AAMOF, I have a fresh invoice,
dated today, for 20 pieces of 5/4 x 5 1/2" x 20' (actual dimension) for
$1354.80, or $3.39 LF), but it is _well_ worth even that cost in the long
run.