I'm trying to cut some 3/4" oak plywood for use in a bookshelf project
I'm currently working on. I've cut this type of plywood using this
very saw before and haven't have any problems at all.
However, this time around I'm having serious difficulties. I started
out using a my old plywood blade. I managed to cut about two feet of
length, but the saw really seemed to be struggling. Finally it
started smoking in contact with the wood, and then ground to a halt.
I checked the blade and it had completely dulled, with melty points on
the tips. So I bought a brand new blade and tried it out, but had the
same results.
In desperation, I changed back over to my general purpose blade, with
fewer teeth. It made it a lot further, but in the end ground to a
halt.
I've examined a cross section of the plywood and haven't noticed
anything weird (no metal, for example). I suppose it could be that I
just have a bad sheet of ply, however.
Another factor might be that I loaned this saw to a neighbor a couple
of weeks ago. He's a real goob, so I suppose it's possible that he
may have broken something...but I haven't seen anything obviously
wrong with the saw.
Any ideas on what might be the problem?
To be honest, I'm kinda hoping that my saw is just worn out. This
will be a great excuse that I can give to my wife as I head into town
to buy a newer, better saw. ;->
On Sun, 17 Feb 2008 05:50:43 -0800 (PST), [email protected] wrote:
>Any ideas on what might be the problem?
>
>To be honest, I'm kinda hoping that my saw is just worn out. This
>will be a great excuse that I can give to my wife as I head into town
>to buy a newer, better saw. ;->
How well is the fence aligned? Sounds as though you might be pinching
between the fence and the blade.
Of course a nice new table saw...
Mark
Plywood glue is hard on regular steel blades. Buy a fine tooth carbide
tipped blade and your troubles will be over.
Charley
"Hank" <[email protected]> wrote in message
news:[email protected]...
> [email protected] wrote in news:8dc0428b-4041-4b04-883b-994a95b08905
> @d5g2000hsc.googlegroups.com:
>
> > I'm trying to cut some 3/4" oak plywood for use in a bookshelf project
> > I'm currently working on. I've cut this type of plywood using this
> > very saw before and haven't have any problems at all.
> >
> > However, this time around I'm having serious difficulties. I started
> > out using a my old plywood blade. I managed to cut about two feet of
> > length, but the saw really seemed to be struggling. Finally it
> > started smoking in contact with the wood, and then ground to a halt.
> > I checked the blade and it had completely dulled, with melty points on
> > the tips. So I bought a brand new blade and tried it out, but had the
> > same results.
> >
> > In desperation, I changed back over to my general purpose blade, with
> > fewer teeth. It made it a lot further, but in the end ground to a
> > halt.
> >
> > I've examined a cross section of the plywood and haven't noticed
> > anything weird (no metal, for example). I suppose it could be that I
> > just have a bad sheet of ply, however.
> >
> > Another factor might be that I loaned this saw to a neighbor a couple
> > of weeks ago. He's a real goob, so I suppose it's possible that he
> > may have broken something...but I haven't seen anything obviously
> > wrong with the saw.
> >
> > Any ideas on what might be the problem?
> >
> > To be honest, I'm kinda hoping that my saw is just worn out. This
> > will be a great excuse that I can give to my wife as I head into town
> > to buy a newer, better saw. ;->
>
> To check wobble. Measure the blade width and then measure the saw kerf.
<[email protected]> wrote
> Any ideas on what might be the problem?
Not without knowing what type of saw it is ... but a blade misalignment,
either to the fence in the case of a table saw, or a bent shaft from misuse
in the case of a circular saw, would cause this behavior.
--
www.e-woodshop.net
Last update: 12/14/07
KarlC@ (the obvious)
[email protected] wrote in news:8dc0428b-4041-4b04-883b-994a95b08905
@d5g2000hsc.googlegroups.com:
> I'm trying to cut some 3/4" oak plywood for use in a bookshelf project
> I'm currently working on. I've cut this type of plywood using this
> very saw before and haven't have any problems at all.
>
> However, this time around I'm having serious difficulties. I started
> out using a my old plywood blade. I managed to cut about two feet of
> length, but the saw really seemed to be struggling. Finally it
> started smoking in contact with the wood, and then ground to a halt.
> I checked the blade and it had completely dulled, with melty points on
> the tips. So I bought a brand new blade and tried it out, but had the
> same results.
>
> In desperation, I changed back over to my general purpose blade, with
> fewer teeth. It made it a lot further, but in the end ground to a
> halt.
>
> I've examined a cross section of the plywood and haven't noticed
> anything weird (no metal, for example). I suppose it could be that I
> just have a bad sheet of ply, however.
>
> Another factor might be that I loaned this saw to a neighbor a couple
> of weeks ago. He's a real goob, so I suppose it's possible that he
> may have broken something...but I haven't seen anything obviously
> wrong with the saw.
>
> Any ideas on what might be the problem?
>
> To be honest, I'm kinda hoping that my saw is just worn out. This
> will be a great excuse that I can give to my wife as I head into town
> to buy a newer, better saw. ;->
To check wobble. Measure the blade width and then measure the saw kerf.
On Feb 17, 8:50=A0am, [email protected] wrote:
> I'm trying to cut some 3/4" oak plywood for use in a bookshelf project
> I'm currently working on. =A0I've cut this type of plywood using this
> very saw before and haven't have any problems at all.
>
> However, this time around I'm having serious difficulties. =A0I started
> out using a my old plywood blade. =A0I managed to cut about two feet of
> length, but the saw really seemed to be struggling. =A0Finally it
> started smoking in contact with the wood, and then ground to a halt.
> I checked the blade and it had completely dulled, with melty points on
> the tips. =A0So I bought a brand new blade and tried it out, but had the
> same results.
>
> In desperation, I changed back over to my general purpose blade, with
> fewer teeth. =A0It made it a lot further, but in the end ground to a
> halt.
>
> I've examined a cross section of the plywood and haven't noticed
> anything weird (no metal, for example). =A0I suppose it could be that I
> just have a bad sheet of ply, however.
>
> Another factor might be that I loaned this saw to a neighbor a couple
> of weeks ago. =A0He's a real goob, so I suppose it's possible that he
> may have broken something...but I haven't seen anything obviously
> wrong with the saw.
>
> Any ideas on what might be the problem?
>
> To be honest, I'm kinda hoping that my saw is just worn out. =A0This
> will be a great excuse that I can give to my wife as I head into town
> to buy a newer, better saw. =A0 ;->
Steel saws are not so durable when cutting plywood, the glue is very
hard and dulls them rather quickly.
They can be pretty easy to sharpen with a taper file right in your own
workshop.
If the edge of the shoe or sole of your circular saw is not parallel
to the blade you won't get much mileage when cutting with the shoe
against a batten.
If you want a new saw look at the porter cable #330, small but
wonderfull.
On Feb 17, 11:22=A0am, Zz Yzx <[email protected]> wrote:
> >Any ideas on what might be the problem?
>
> Got the blade(s) on right? =A0You wouldn't be the first woodworker in
> this group to put a blade on backwards. =A0DAMHIKT.
>
> -Zz
Heh...Yes, having done that very thing before, that was the first
thing I checked. ;->
On Feb 17, 8:33=A0am, "Dave W" <[email protected]> wrote:
>.I had similar
> problems with a Milwaulkee saw and found the problem to be a bent sole
> plate....
Now it's interesting that you would mention that. I've inspected the
saw and the shaft doesn't seem to be visibly out of alignment.
However, when I insert the blade into my existing cut, the saw seems
somehow "wobbly", to put it technically. I'll inspect the baseplate
and see what I can find out.
I hope you get to the bottom of the problem. IMHO this is not the time to
buy a new saw.....better to find out what is wrong first. I had similar
problems with a Milwaulkee saw and found the problem to be a bent sole
plate. A few minutes with the vise, blocks of wood and a hammer and it is
back to it's old form.
Dave