I went out this morning and bought a load of maple for a shaker-style
table that I'm building from my wood supplier, Diverse Hardwoods in
Longmont CO. My plan was to begin by ripping the 1-1/2" legs from a
piece of 8/4 maple. I get about 8" into the cut when the saw starts
bogging down. I react by advancing the wood more slowly, but no joy --
the blade continues to slow even when I'm not advancing the wood at
all. I managed to hit the off switch before the blade had completely
stopped, but some smoke is arising from the wood. To my surprise I
could not pull the wood back out from the blade. The board was gripping
the blade so tightly that I ended up having to pound the wood backwards
with a wooden mallet to get it out. It must have taken 50-100 hard
blows before I finally get the wood away from the blade.
When I finally got the board out and finished sweating I checked the
blade for runout and the fence for alignment, and everything seemed to
be OK. (Saw is a BT3000 with a thin-kerf WW II blade.) The saw started
up OK, so I started making test cuts to try to figure out what had
happened. I first ripped a piece of 3/4" plywood, no problem. Clean
cut, no burning. Being emboldened by this I ripped, in succession, a
piece of 2x4 pine, a piece of 6/4 oak, and finally a piece of 10/4
poplar. All cut cleanly, no burning or other bad behavior.
Have I just had my first experience with reactive wood? What's up with
this? Is it a common occurrence?
--
Vince Heuring To email, remove the Vince.
In article <[email protected]>, Howard Ruttan
<[email protected]> wrote:
> "George" wrote ...
> > Well, case-hardening in the kiln and wild grain suggest themselves.
>
> Interior stress in wood can occur naturally as well
>
> > Get thee to a bandsaw and rough a bit more oversize.
>
> Excellent advice. That is my preferred method.
>
Yup, that's exactly what I did, and it worked fine. BTW, the BT3000
has a riving knife but I guess the wood didn't even reach it.
As of this moment the sawdust has been removed from the 8/4 x 7 maple,
leaving four table legs. :-)
Thanks to all!
--
Vince Heuring To email, remove the Vince.
Well, case-hardening in the kiln and wild grain suggest themselves. The
kerf was closing, apparently, on the back of the blade. If you had a
splitter, and it was in place, you might have avoided the jam, though the
burn would still have been there.
Get thee to a bandsaw and rough a bit more oversize.
"Vince Heuring" <[email protected]> wrote in message
news:120620041340259680%[email protected]...
>
> I went out this morning and bought a load of maple for a shaker-style
> table that I'm building from my wood supplier, Diverse Hardwoods in
> Longmont CO. My plan was to begin by ripping the 1-1/2" legs from a
> piece of 8/4 maple. I get about 8" into the cut when the saw starts
> bogging down. I react by advancing the wood more slowly, but no joy --
> the blade continues to slow even when I'm not advancing the wood at
> all. I managed to hit the off switch before the blade had completely
> stopped, but some smoke is arising from the wood. To my surprise I
> could not pull the wood back out from the blade. The board was gripping
> the blade so tightly that I ended up having to pound the wood backwards
> with a wooden mallet to get it out. It must have taken 50-100 hard
> blows before I finally get the wood away from the blade.
Wider splitter or a better kiln?
Of course, I'm using a Delta CS and no splitter, and air dry my own wood, so
the few curly birch or nasty aspen (real poplar) that think of grabbing
generally warn me by trying to lift at the rear of the blade. Whereupon I
turn it off and go to the bandsaw. Hope the OP left the oversize roughs
out in the open to relax before attempting to take them to final size.
Favors the best outcome that way.
<[email protected]> wrote in message
news:[email protected]...
> I've had 4/4 red oak stop the blade enough to kill the belts and also
> had the wood squeezed closed on the splitter. Using a BT3000 and WWII
> thin kerf.
>
> On Sat, 12 Jun 2004 16:42:09 -0400, "George" <george@least> wrote:
>
> >Well, case-hardening in the kiln and wild grain suggest themselves. The
> >kerf was closing, apparently, on the back of the blade. If you had a
> >splitter, and it was in place, you might have avoided the jam, though the
> >burn would still have been there.
>
Those he prepared at the bandsaw.
<[email protected]> wrote in message
news:[email protected]...
> On Sun, 13 Jun 2004 12:10:01 -0400, "George" <george@least> wrote:
Hope the OP left the oversize roughs
> >out in the open to relax before attempting to take them to final size.
> >Favors the best outcome that way.
>
>
> nope. said he bought it the night before.
I've had 4/4 red oak stop the blade enough to kill the belts and also
had the wood squeezed closed on the splitter. Using a BT3000 and WWII
thin kerf.
On Sat, 12 Jun 2004 16:42:09 -0400, "George" <george@least> wrote:
>Well, case-hardening in the kiln and wild grain suggest themselves. The
>kerf was closing, apparently, on the back of the blade. If you had a
>splitter, and it was in place, you might have avoided the jam, though the
>burn would still have been there.
Vince Heuring <[email protected]> wrote:
> I went out this morning and bought a load of maple for a shaker-style
> table that I'm building from my wood supplier, Diverse Hardwoods in
> Longmont CO. [... snip...] The board was gripping
> the blade so tightly that I ended up having to pound the wood backwards
> with a wooden mallet to get it out. It must have taken 50-100 hard
> blows before I finally get the wood away from the blade.
Hi Vince,
I had this experience once with a 5/4 piece of red elm. Since then I
rough rip on the bandsaw, as the other poster mentioned. This
occurred on wood that I get from a trusted lumber mill, but it was
pretty close to an area with a lot of figure/crotch/knot.
Just curious. I am local to you ... have you been overall pleased
with Diverse? I get wood in Fort Collins from either Sears Trostel or
from Kyhlwood (comes in once a month from Iowa).
Cheers,
Nate
Planing down the wood is sometimes suggested for case hardened wood to
reduce the stress once cut on the TS. Plane both sides equal is my guess.
Rich
"Vince Heuring" <[email protected]> wrote in message
news:120620041340259680%[email protected]...
>
> I went out this morning and bought a load of maple for a shaker-style
> table that I'm building from my wood supplier, Diverse Hardwoods in
> Longmont CO. My plan was to begin by ripping the 1-1/2" legs from a
> piece of 8/4 maple. I get about 8" into the cut when the saw starts
> bogging down. I react by advancing the wood more slowly, but no joy --
> the blade continues to slow even when I'm not advancing the wood at
> all. I managed to hit the off switch before the blade had completely
> stopped, but some smoke is arising from the wood. To my surprise I
> could not pull the wood back out from the blade. The board was gripping
> the blade so tightly that I ended up having to pound the wood backwards
> with a wooden mallet to get it out. It must have taken 50-100 hard
> blows before I finally get the wood away from the blade.
>
> When I finally got the board out and finished sweating I checked the
> blade for runout and the fence for alignment, and everything seemed to
> be OK. (Saw is a BT3000 with a thin-kerf WW II blade.) The saw started
> up OK, so I started making test cuts to try to figure out what had
> happened. I first ripped a piece of 3/4" plywood, no problem. Clean
> cut, no burning. Being emboldened by this I ripped, in succession, a
> piece of 2x4 pine, a piece of 6/4 oak, and finally a piece of 10/4
> poplar. All cut cleanly, no burning or other bad behavior.
>
> Have I just had my first experience with reactive wood? What's up with
> this? Is it a common occurrence?
>
> --
> Vince Heuring To email, remove the Vince.
>
"George" wrote ...
> Well, case-hardening in the kiln and wild grain suggest themselves.
Interior stress in wood can occur naturally as well
> Get thee to a bandsaw and rough a bit more oversize.
Excellent advice. That is my preferred method.
--
Cheers,
Howard
----------------------------------------------------------
Working wood in New Jersey - [email protected]
Visit me in the woodshop - www.inthewoodshop.org
Probably and while not common too that point it's not rare either.
--
Mike G.
Heirloom Woods
[email protected]
www.heirloom-woods.net
"Vince Heuring" <[email protected]> wrote in message
news:120620041340259680%[email protected]...
>
> I went out this morning and bought a load of maple for a shaker-style
> table that I'm building from my wood supplier, Diverse Hardwoods in
> Longmont CO. My plan was to begin by ripping the 1-1/2" legs from a
> piece of 8/4 maple. I get about 8" into the cut when the saw starts
> bogging down. I react by advancing the wood more slowly, but no joy --
> the blade continues to slow even when I'm not advancing the wood at
> all. I managed to hit the off switch before the blade had completely
> stopped, but some smoke is arising from the wood. To my surprise I
> could not pull the wood back out from the blade. The board was gripping
> the blade so tightly that I ended up having to pound the wood backwards
> with a wooden mallet to get it out. It must have taken 50-100 hard
> blows before I finally get the wood away from the blade.
>
> When I finally got the board out and finished sweating I checked the
> blade for runout and the fence for alignment, and everything seemed to
> be OK. (Saw is a BT3000 with a thin-kerf WW II blade.) The saw started
> up OK, so I started making test cuts to try to figure out what had
> happened. I first ripped a piece of 3/4" plywood, no problem. Clean
> cut, no burning. Being emboldened by this I ripped, in succession, a
> piece of 2x4 pine, a piece of 6/4 oak, and finally a piece of 10/4
> poplar. All cut cleanly, no burning or other bad behavior.
>
> Have I just had my first experience with reactive wood? What's up with
> this? Is it a common occurrence?
>
> --
> Vince Heuring To email, remove the Vince.
On Sun, 13 Jun 2004 12:10:01 -0400, "George" <george@least> wrote:
>Wider splitter or a better kiln?
>
>Of course, I'm using a Delta CS and no splitter, and air dry my own wood, so
>the few curly birch or nasty aspen (real poplar) that think of grabbing
>generally warn me by trying to lift at the rear of the blade. Whereupon I
>turn it off and go to the bandsaw. Hope the OP left the oversize roughs
>out in the open to relax before attempting to take them to final size.
>Favors the best outcome that way.
nope. said he bought it the night before.
>
><[email protected]> wrote in message
>news:[email protected]...
>> I've had 4/4 red oak stop the blade enough to kill the belts and also
>> had the wood squeezed closed on the splitter. Using a BT3000 and WWII
>> thin kerf.
>>
>> On Sat, 12 Jun 2004 16:42:09 -0400, "George" <george@least> wrote:
>>
>> >Well, case-hardening in the kiln and wild grain suggest themselves. The
>> >kerf was closing, apparently, on the back of the blade. If you had a
>> >splitter, and it was in place, you might have avoided the jam, though the
>> >burn would still have been there.
>>
>
On Sat, 12 Jun 2004 13:40:25 -0600, Vince Heuring
<[email protected]> wrote:
>
>I went out this morning and bought a load of maple for a shaker-style
>table that I'm building from my wood supplier, Diverse Hardwoods in
>Longmont CO. My plan was to begin by ripping the 1-1/2" legs from a
>piece of 8/4 maple. I get about 8" into the cut when the saw starts
>bogging down. I react by advancing the wood more slowly, but no joy --
>the blade continues to slow even when I'm not advancing the wood at
>all. I managed to hit the off switch before the blade had completely
>stopped, but some smoke is arising from the wood. To my surprise I
>could not pull the wood back out from the blade. The board was gripping
>the blade so tightly that I ended up having to pound the wood backwards
>with a wooden mallet to get it out. It must have taken 50-100 hard
>blows before I finally get the wood away from the blade.
>
>When I finally got the board out and finished sweating I checked the
>blade for runout and the fence for alignment, and everything seemed to
>be OK. (Saw is a BT3000 with a thin-kerf WW II blade.) The saw started
>up OK, so I started making test cuts to try to figure out what had
>happened. I first ripped a piece of 3/4" plywood, no problem. Clean
>cut, no burning. Being emboldened by this I ripped, in succession, a
>piece of 2x4 pine, a piece of 6/4 oak, and finally a piece of 10/4
>poplar. All cut cleanly, no burning or other bad behavior.
>
>Have I just had my first experience with reactive wood? What's up with
>this? Is it a common occurrence?
sounds like what wood does when it has been kiln dried too fast-
pinch.