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03/12/2003 6:24 PM

Outside Dado Blades - Beware

I learned the hard way today that there's a right and a left outside
blade for my Freud SD208 stacked dado set.

After happily cutting nice box joints for quite a while I pulled out
my trusty dado blade today to make four desk drawers. I cut the first
set carefully and dry fit - a bit looser then usual, must be the MDO
plywood I'm using for the first time. Anyways, forged ahead and
whipped out the rest of the drawers and dry fit - well, these went to
the scrap pile.

Must be something wrong with my home-made box joint jig - nope. Maybe
something got jammed into the dado stack - nope. Then noticed I
didn't have the outside blades with the 'painted' sides on the outside
as usual - yep, that was it. The cut is slightly wider with the
blades reversed.

I don't know if all stacked dadoes are like this but mine sure is.
Hope this note keeps someone from wasting some drawers like I did.
Hope my next project has some smaller drawers so I can use that scrap.

Steve

P.S. The 1/2" MDO plywood I got at Menard's is pretty nice stuff -
five plys, real stright, no voids that I've run into yet, and not too
pricey either. Poor man's baltic birch, I suppose.


This topic has 4 replies

jj

jev

in reply to [email protected] (Steve) on 03/12/2003 6:24 PM

05/12/2003 8:07 AM

All stacked dado sets I'm familiar with have beveled tooth cuts on the
outside blades. Mount the blades so the high point of the bevel is on
the outside.


On Fri, 05 Dec 2003 02:36:51 GMT, "Tom Kohlman"
<[email protected]> wrote:

>Thanks for the advice. The Delta 8" had no instructions whatsoever and I
>guess I never gave it any thought that there was any significance to the
>fact that one blade had writing on it and the other didn't. I have always
>put the latter on the arbor first since that is the order they come out of
>the box I built to store it in. Is that correct or should I reverse the
>two?
>
>
>"Pounds on Wood" <[email protected]> wrote in message
>news:[email protected]...
>> Good advice. So far as I know, all stacked dado sets have specified
>outside
>> faces.
>>
>> Don't feel too bad though, I have put a chipper in backward before.
>Leaves
>> a nice black streak in the groove.
>>
>> --
>> Bill Pounds
>> http://www.bill.pounds.net/woodshop
>>
>>
>> "Steve" <[email protected]> wrote in message
>> news:[email protected]...
>> > I learned the hard way today that there's a right and a left outside
>> > blade for my Freud SD208 stacked dado set.
>> >
>> snipped
>>
>>
>

Po

"Pounds on Wood"

in reply to [email protected] (Steve) on 03/12/2003 6:24 PM

04/12/2003 6:17 PM

Good advice. So far as I know, all stacked dado sets have specified outside
faces.

Don't feel too bad though, I have put a chipper in backward before. Leaves
a nice black streak in the groove.

--
Bill Pounds
http://www.bill.pounds.net/woodshop


"Steve" <[email protected]> wrote in message
news:[email protected]...
> I learned the hard way today that there's a right and a left outside
> blade for my Freud SD208 stacked dado set.
>
snipped

Ba

B a r r y B u r k e J r .

in reply to [email protected] (Steve) on 03/12/2003 6:24 PM

05/12/2003 12:12 PM

On Fri, 05 Dec 2003 02:36:51 GMT, "Tom Kohlman"
<[email protected]> wrote:

>Thanks for the advice. The Delta 8" had no instructions whatsoever

My Freud set, which I can't remember the model #, has "This Side Out"
and rotational arrows printed on both blades.

Barry

TK

"Tom Kohlman"

in reply to [email protected] (Steve) on 03/12/2003 6:24 PM

05/12/2003 2:36 AM

Thanks for the advice. The Delta 8" had no instructions whatsoever and I
guess I never gave it any thought that there was any significance to the
fact that one blade had writing on it and the other didn't. I have always
put the latter on the arbor first since that is the order they come out of
the box I built to store it in. Is that correct or should I reverse the
two?


"Pounds on Wood" <[email protected]> wrote in message
news:[email protected]...
> Good advice. So far as I know, all stacked dado sets have specified
outside
> faces.
>
> Don't feel too bad though, I have put a chipper in backward before.
Leaves
> a nice black streak in the groove.
>
> --
> Bill Pounds
> http://www.bill.pounds.net/woodshop
>
>
> "Steve" <[email protected]> wrote in message
> news:[email protected]...
> > I learned the hard way today that there's a right and a left outside
> > blade for my Freud SD208 stacked dado set.
> >
> snipped
>
>


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