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10/04/2013 11:01 AM

Single Dado Blade Usage

I need to make a slot for a key in a picture frame corner. In the past I would use my standard combo blade but it doesn't leave a flat bottom.

Have you ever used a single outside blade for this task? I have a Freud Dial-A-Dado. The manufacturer says to not do it but I don't see the harm. What am I missing? Is this a bad idea?


This topic has 10 replies

Ll

Leon

in reply to [email protected] on 10/04/2013 11:01 AM

13/04/2013 7:56 AM

<[email protected]> wrote:
> On Friday, April 12, 2013 8:19:18 PM UTC-4, Leon wrote:
>> <[email protected]> wrote:
>>
>>> On Wednesday, April 10, 2013 2:01:23 PM UTC-4, [email protected] wrote:
>>
>>>> I need to make a slot for a key in a picture frame corner. In the past
>>
>>>> I would use my standard combo blade but it doesn't leave a flat bottom.
>>
>>>>
>>
>>>>
>>
>>>>
>>
>>>> Have you ever used a single outside blade for this task? I have a Freud
>>
>>>> Dial-A-Dado. The manufacturer says to not do it but I don't see the
>>
>>>> harm. What am I missing? Is this a bad idea?
>>
>>>
>>
>>> Thanks for the input guys! I ended up just using both outside blades
>>
>>> (sans chippers) and it came out to a 0.23" spline :)
>>
>>>
>>
>>> You can see the build here:
>>
>>> http://www.youtube.com/watch?v=1YZcQby_GFI
>>
>>
>>
>> Nice job Brian.
>>
>>
>>
>> Turn about is fair play, :-). A problem with using a sock or similar
>>
>> thirsty material to apply a finish and or stain is the amount of the
>>
>> material it soaks up.. Women's old stockings and or panty hose work very
>>
>> well to apply either varnish or stain. As a bonus they also do not absorb
>>
>> the pigment from the stain.
>>
>>
>>
>> Lastly, how often do you find that you have to reset the 45 degree setting
>>
>> on that Osbourne miter gauge? I tried one several years ago and found the
>>
>> same problem especially if it was used at 45 with the telescoping arm
>>
>> almost fully extended.
>
> It was only off 5 thou over 8" so I just left it alone. It's a pretty
> rare event for me to cut 45's. It would definitely be a pain to have to
> set the 45 manually w/o a pos stop each time.
>
> Which miter gauge are you using now?

Two different ones. For smaller lighter cuts I am using the Incra 1000HD
with the next size longer telescoping fence.
I mostly use it for narrow stock, <10".
I also have left and right side Dubby jig sleds. These are strictly
visual for angle setting but the angle scale is along the outer edge of the
sled and that gauge is relatively long. IIRC the scale is about 16~18"
long so if you divide that length by 45 you can see that there is quite a
bit of distance between degree marks. Considering no positive detent stops
it is pretty darn accurate. About 15" out from the pivot clamp knob is
another clamp knob that holds the angle setting with out chance for wiggle
or deflection.

http://www.in-lineindustries.com/double_dubby.html

Ll

Leon

in reply to [email protected] on 10/04/2013 11:01 AM

12/04/2013 7:22 PM

<[email protected]> wrote:
> On Friday, April 12, 2013 12:15:57 PM UTC-4, SonomaProducts.com wrote:
>>>
>>
>>> You can see the build here:
>>
>>>
>>
>>> http://www.youtube.com/watch?v=1YZcQby_GFI
>>
>>
>>
>> Nice technique on setting up the 45 cross cut. Very nice.
>>
>>
>>
>> On nipping the spline, I would have sawed it proud about 1/16th and then
>> used the block plane to smooth it down, rather than sawing it tight and
>> then using the block plane to try and defeat the teeth marks.
>
> Great suggestion! Maybe use a playing card in between the saw and wood. Nice.

Alternatively cut them as triangles vs rectangles before glueing in place.

Ll

Leon

in reply to [email protected] on 10/04/2013 11:01 AM

10/04/2013 1:48 PM

On 4/10/2013 1:01 PM, [email protected] wrote:
> I need to make a slot for a key in a picture frame corner. In the past I would use my standard combo blade but it doesn't leave a flat bottom.
>
> Have you ever used a single outside blade for this task? I have a Freud Dial-A-Dado. The manufacturer says to not do it but I don't see the harm. What am I missing? Is this a bad idea?
>


I can't see any danger but I have to believe that you will probably get
a less than desirable cut. These outer blades are location specific, at
least on the Forrest dado king, you might get a rough cut on one side.

On a second thought will everything press/connect correctly with out a
chipper in there against that adjustable blade???

Test first.

I have used my plate joiner/biscuit cutter for similar cuts.

Ll

Leon

in reply to [email protected] on 10/04/2013 11:01 AM

12/04/2013 7:19 PM

<[email protected]> wrote:
> On Wednesday, April 10, 2013 2:01:23 PM UTC-4, [email protected] wrote:
>> I need to make a slot for a key in a picture frame corner. In the past
>> I would use my standard combo blade but it doesn't leave a flat bottom.
>>
>>
>>
>> Have you ever used a single outside blade for this task? I have a Freud
>> Dial-A-Dado. The manufacturer says to not do it but I don't see the
>> harm. What am I missing? Is this a bad idea?
>
> Thanks for the input guys! I ended up just using both outside blades
> (sans chippers) and it came out to a 0.23" spline :)
>
> You can see the build here:
> http://www.youtube.com/watch?v=1YZcQby_GFI

Nice job Brian.

Turn about is fair play, :-). A problem with using a sock or similar
thirsty material to apply a finish and or stain is the amount of the
material it soaks up.. Women's old stockings and or panty hose work very
well to apply either varnish or stain. As a bonus they also do not absorb
the pigment from the stain.

Lastly, how often do you find that you have to reset the 45 degree setting
on that Osbourne miter gauge? I tried one several years ago and found the
same problem especially if it was used at 45 with the telescoping arm
almost fully extended.

LH

"Lew Hodgett"

in reply to [email protected] on 10/04/2013 11:01 AM

10/04/2013 12:26 PM


<[email protected]> wrote:

>I need to make a slot for a key in a picture frame corner. In the
>past I would use my standard combo blade but it doesn't leave a flat
>bottom.
>
> Have you ever used a single outside blade for this task? I have a
> Freud Dial-A-Dado. The manufacturer says to not do it but I don't
> see the harm. What am I missing? Is this a bad idea?
-----------------------------------------------------------------------------
Have you looked at your 24T rip blade lately?


Lew


Sb

"SonomaProducts.com"

in reply to [email protected] on 10/04/2013 11:01 AM

12/04/2013 9:15 AM


>
> You can see the build here:
>
> http://www.youtube.com/watch?v=1YZcQby_GFI

Nice technique on setting up the 45 cross cut. Very nice.

On nipping the spline, I would have sawed it proud about 1/16th and then used the block plane to smooth it down, rather than sawing it tight and then using the block plane to try and defeat the teeth marks.

b

in reply to [email protected] on 10/04/2013 11:01 AM

12/04/2013 9:19 PM

On Friday, April 12, 2013 8:19:18 PM UTC-4, Leon wrote:
> <[email protected]> wrote:
>
> > On Wednesday, April 10, 2013 2:01:23 PM UTC-4, [email protected] wrote:
>
> >> I need to make a slot for a key in a picture frame corner. In the past
>
> >> I would use my standard combo blade but it doesn't leave a flat bottom.
>
> >>
>
> >>
>
> >>
>
> >> Have you ever used a single outside blade for this task? I have a Freud
>
> >> Dial-A-Dado. The manufacturer says to not do it but I don't see the
>
> >> harm. What am I missing? Is this a bad idea?
>
> >
>
> > Thanks for the input guys! I ended up just using both outside blades
>
> > (sans chippers) and it came out to a 0.23" spline :)
>
> >
>
> > You can see the build here:
>
> > http://www.youtube.com/watch?v=1YZcQby_GFI
>
>
>
> Nice job Brian.
>
>
>
> Turn about is fair play, :-). A problem with using a sock or similar
>
> thirsty material to apply a finish and or stain is the amount of the
>
> material it soaks up.. Women's old stockings and or panty hose work very
>
> well to apply either varnish or stain. As a bonus they also do not absorb
>
> the pigment from the stain.
>
>
>
> Lastly, how often do you find that you have to reset the 45 degree setting
>
> on that Osbourne miter gauge? I tried one several years ago and found the
>
> same problem especially if it was used at 45 with the telescoping arm
>
> almost fully extended.

It was only off 5 thou over 8" so I just left it alone. It's a pretty rare event for me to cut 45's. It would definitely be a pain to have to set the 45 manually w/o a pos stop each time.

Which miter gauge are you using now?

b

in reply to [email protected] on 10/04/2013 11:01 AM

12/04/2013 7:14 AM

On Wednesday, April 10, 2013 2:01:23 PM UTC-4, [email protected] wrote:
> I need to make a slot for a key in a picture frame corner. In the past I would use my standard combo blade but it doesn't leave a flat bottom.
>
>
>
> Have you ever used a single outside blade for this task? I have a Freud Dial-A-Dado. The manufacturer says to not do it but I don't see the harm. What am I missing? Is this a bad idea?

Thanks for the input guys! I ended up just using both outside blades (sans chippers) and it came out to a 0.23" spline :)

You can see the build here:
http://www.youtube.com/watch?v=1YZcQby_GFI

b

in reply to [email protected] on 10/04/2013 11:01 AM

12/04/2013 10:15 AM

On Friday, April 12, 2013 12:15:57 PM UTC-4, SonomaProducts.com wrote:
> >
>
> > You can see the build here:
>
> >
>
> > http://www.youtube.com/watch?v=1YZcQby_GFI
>
>
>
> Nice technique on setting up the 45 cross cut. Very nice.
>
>
>
> On nipping the spline, I would have sawed it proud about 1/16th and then used the block plane to smooth it down, rather than sawing it tight and then using the block plane to try and defeat the teeth marks.

Great suggestion! Maybe use a playing card in between the saw and wood. Nice.

Sb

"SonomaProducts.com"

in reply to [email protected] on 10/04/2013 11:01 AM

10/04/2013 11:37 AM

On Wednesday, April 10, 2013 11:01:23 AM UTC-7, [email protected] wrote:
> I need to make a slot for a key in a picture frame corner. In the past I would use my standard combo blade but it doesn't leave a flat bottom.
>
>
>
> Have you ever used a single outside blade for this task? I have a Freud Dial-A-Dado. The manufacturer says to not do it but I don't see the harm. What am I missing? Is this a bad idea?

Not sure what the problem could be but most outer dado blades have alternating teeth with a clean cut edge tooth followed by a flat bottom tooth. I would assume you will get one ragged edge if you just use a single outer blade.

I keep one FTG blade around for doing tenons so have never benn forced to try this. If it is not too deep, maybe a router with an 1/8" bit?


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