I'm a newbie who is about to pick up a 10" Dewalt 744s table saw. I'm
thinking about purchasing a dado set for that saw but notice that the
sets seem to come in 6" and 8" standard sizes. I'm assuming that the 8"
set will remain sharper for a longer period of time and will cut a
deeper groove with the table saw. However, I would think the 6" blade
set would reduce stress on the saw motor since it would take less to get
the smaller blades cutting. Am I correct in assuming these things? Is
the 8" size more efficient?

The dado set would not get heavy duty use nor be used on large projects.
In fact, I doubt I'd be cutting gooves wider than 1/4" and maybe 1/2"
deep maximum. Is there any reason to choose one set over the other?

Thanks for any info.

Joe

IF you have an under powered saw, the 8" is better because of it's flywheel
effect.



--

Rumpty

Radial Arm Saw Forum: http://forums.delphiforums.com/woodbutcher/start

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"joe smigiel" wrote in message
...
I'm a newbie who is about to pick up a 10" Dewalt 744s table saw. I'm
thinking about purchasing a dado set for that saw but notice that the
sets seem to come in 6" and 8" standard sizes. I'm assuming that the 8"
set will remain sharper for a longer period of time and will cut a
deeper groove with the table saw. However, I would think the 6" blade
set would reduce stress on the saw motor since it would take less to get
the smaller blades cutting. Am I correct in assuming these things? Is
the 8" size more efficient?

The dado set would not get heavy duty use nor be used on large projects.
In fact, I doubt I'd be cutting gooves wider than 1/4" and maybe 1/2"
deep maximum. Is there any reason to choose one set over the other?

Thanks for any info.

Joe

"joe smigiel" wrote in message
...
I'm a newbie who is about to pick up a 10" Dewalt 744s table saw. I'm
thinking about purchasing a dado set for that saw but notice that the
sets seem to come in 6" and 8" standard sizes. I'm assuming that the 8"
set will remain sharper for a longer period of time and will cut a
deeper groove with the table saw. However, I would think the 6" blade
set would reduce stress on the saw motor since it would take less to get
the smaller blades cutting. Am I correct in assuming these things? Is
the 8" size more efficient?

I bought mine from Ridge Carbide at a show. The owner told me the 6" are
lighter and needed for low powered saws like the direct drive ones. The 8"
is good for any saw with 1.5 hp or larger motor. I bought the 8".

On Sat, 18 Dec 2004 22:56:52 -0500, joe smigiel
wrote:

I'm a newbie who is about to pick up a 10" Dewalt 744s table saw. I'm
thinking about purchasing a dado set for that saw but notice that the
sets seem to come in 6" and 8" standard sizes. I'm assuming that the 8"
set will remain sharper for a longer period of time and will cut a
deeper groove with the table saw. However, I would think the 6" blade
set would reduce stress on the saw motor since it would take less to get
the smaller blades cutting. Am I correct in assuming these things? Is
the 8" size more efficient?

Along with the other points already mentioned, a 6" usually won't
work with a sled. If years from now you've never used a sled, the 6"
will have served you well, otherwise, you'll have also bought an 8"
set.

Once you dado a case side with a sled, you'll never dado without the
sled. G

Barry

"Rumpty" wrote in message
...
IF you have an under powered saw, the 8" is better because of it's
flywheel
effect.

I disagree. The torque required to generate the same cutting force at the
blade tip on an 8" is approximately 33% greater than a 6".

Bob

As I am also upgrading my shop with a new table saw(Grizz 1023SL) could
someone post the definition of a sled and what the advantages/uses are?

I've done a lot of woodwork but until now had only the basics.

Thanks guys.

RonT

On Sun, 19 Dec 2004 18:29:20 GMT, "Bob"
wrote:


I disagree. The torque required to generate the same cutting force at the
blade tip on an 8" is approximately 33% greater than a 6".

Feed it slower.

Barry

On Sun, 19 Dec 2004 18:29:20 GMT, "Bob"
calmly ranted:

"Rumpty" wrote in message
...
IF you have an under powered saw, the 8" is better because of it's
flywheel
effect.

I disagree. The torque required to generate the same cutting force at the
blade tip on an 8" is approximately 33% greater than a 6".

IOW, don't try the 8-incher at home on your 24HP (7A @ 115v)
Crapsman tablesaw, boys and girls!

--
Save the Endangered ROAD NARROWS! -|- www.diversify.com
Ban SUVs today! -|- Full Service Websites

Using a single blade I agree, but the flywheel effect should be considered
on the dado.

--

Rumpty

Radial Arm Saw Forum: http://forums.delphiforums.com/woodbutcher/start

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"Bob" wrote in message
ink.net...

"Rumpty" wrote in message
...
IF you have an under powered saw, the 8" is better because of it's
flywheel
effect.

I disagree. The torque required to generate the same cutting force at the
blade tip on an 8" is approximately 33% greater than a 6".

Bob

In article ,
joe smigiel wrote:
I'm a newbie who is about to pick up a 10" Dewalt 744s table saw. I'm
thinking about purchasing a dado set for that saw but notice that the
sets seem to come in 6" and 8" standard sizes. I'm assuming that the 8"
set will remain sharper for a longer period of time and will cut a
deeper groove with the table saw. However, I would think the 6" blade
set would reduce stress on the saw motor since it would take less to get
the smaller blades cutting. Am I correct in assuming these things? Is
the 8" size more efficient?

The dado set would not get heavy duty use nor be used on large projects.
In fact, I doubt I'd be cutting gooves wider than 1/4" and maybe 1/2"
deep maximum. Is there any reason to choose one set over the other?

Thanks for any info.

Joe

I think the 6" is appropriate for the DW744. It is a jobsite/porable
saw, isn't it? At any rate, I would wait to read the literature that
comes with the saw before purchasing any dado for it.


--

Larry Wasserman Baltimore, Maryland

If you are dadoing toothpicks.

-j



"Rumpty" wrote in message
...
Using a single blade I agree, but the flywheel effect should be considered
on the dado.

--

Rumpty

Radial Arm Saw Forum: http://forums.delphiforums.com/woodbutcher/start

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"Bob" wrote in message
ink.net...

"Rumpty" wrote in message
...
IF you have an under powered saw, the 8" is better because of it's
flywheel
effect.

I disagree. The torque required to generate the same cutting force at
the
blade tip on an 8" is approximately 33% greater than a 6".

Bob

Otay, be happy with your 6 inch dado, when it stalls don't complain.

--

Rumpty

Radial Arm Saw Forum: http://forums.delphiforums.com/woodbutcher/start

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"J" wrote in message
...
If you are dadoing toothpicks.

-j



"Rumpty" wrote in message
...
Using a single blade I agree, but the flywheel effect should be
considered
on the dado.

--

Rumpty

Radial Arm Saw Forum: http://forums.delphiforums.com/woodbutcher/start

- - - - - - - - - - - - - - - - - - - - -


"Bob" wrote in message
ink.net...

"Rumpty" wrote in message
...
IF you have an under powered saw, the 8" is better because of it's
flywheel
effect.

I disagree. The torque required to generate the same cutting force at
the
blade tip on an 8" is approximately 33% greater than a 6".

Bob

Rumpty,

You certainly know enough physics to know that an 8" dado set spinning at
say 3000 RPM has more kinetic energy than a 6" dado set due to it's higher
mass and greater diameter.
That is the "flywheel effect" that you are talking about.

However, once that energy has been expended by cutting wood then the 8"
blade poses a bigger load on the motor than the 6" blade set. So your claim
certainly is correct for cutting short dado's and incorrect for any cut
where the energy required to make the cut is substantially greater than the
kinetic energy stored in the spinning blade.

I'm not about to conduct tests using both kinds of dados on low powered saw
since I only have an 8" blade and a 3HP saw. But I would guess that a deep
dado in say a 3' panel would be more than enough to show the difference.
While a shallow dado 3" long would not.

-j

"Rumpty" wrote in message
...
Otay, be happy with your 6 inch dado, when it stalls don't complain.

--

Rumpty

Radial Arm Saw Forum: http://forums.delphiforums.com/woodbutcher/start

- - - - - - - - - - - - - - - - - - - - -


"J" wrote in message
...
If you are dadoing toothpicks.

-j



"Rumpty" wrote in message
...
Using a single blade I agree, but the flywheel effect should be
considered
on the dado.

--

Rumpty

Radial Arm Saw Forum:
http://forums.delphiforums.com/woodbutcher/start

- - - - - - - - - - - - - - - - - - - - -


"Bob" wrote in message
ink.net...

"Rumpty" wrote in message
...
IF you have an under powered saw, the 8" is better because of
it's
flywheel
effect.

I disagree. The torque required to generate the same cutting force
at
the
blade tip on an 8" is approximately 33% greater than a 6".

Bob