Dado Blade

JPG · Post by **JPG** » Sat May 23, 2009 9:20 am

dusty wrote:Obviously, not all dadoes are the same.

I too have a Shopsmith adjustable dado blade that I use and like. It doesn't do as good a job as Charlese' but that might not be due to the blade. Charlese is obviously a better craftsman and some of this performance that we are discussing (criticizing) is not due to the equipment.

This is the adjustable dado that I use.
[ATTACH]4621[/ATTACH]

Is this the correct arbor to be used with the dado blade?
[ATTACH]4622[/ATTACH]

Yes! Looks like a SS 505506.

Any 'criticism' by me was directed to the wobble blades, NOT any towards any 'craftsman'. If anything I said can be interpreted as craftsman related criticism, I be sorry, That was NOT my intention!

The curved bottom is unavoidable, but is more apparent with wider cuts. Perhaps my experience with the uneven depth and the obvious extra cost of the internal mechanism is what made it a curious oddity to some who have asked WHAT it is when they see it!

dusty · Post by **dusty** » Sat May 23, 2009 10:39 am

JPG40504 wrote:Yes! Looks like a SS 505506.

Any 'criticism' by me was directed to the wobble blades, NOT any towards any 'craftsman'. If anything I said can be interpreted as craftsman related criticism, I be sorry, That was NOT my intention!

The curved bottom is unavoidable, but is more apparent with wider cuts. Perhaps my experience with the uneven depth and the obvious extra cost of the internal mechanism is what made it a curious oddity to some who have asked WHAT it is when they see it!

Is the 505506 a Magna Dado Blade incognito as a Shopsmith blade?

AND I was more concerned about the arbor.

As for my comment about craftsmanship - that was NOT directed. I was implying that some machine defects are well hiden in the hands of a craftsman. EXAMPLE: Charlese' dado with a wobble blade. Either his blade performs more like a stacked dado or Charlese uses it differently than I do.
I say that because he gets square bottoms.

Ah - a new nickname. I'll leave the rest to your imagination.

mickyd · Post by **mickyd** » Sat May 23, 2009 11:09 am

charlese wrote:Actually, we are playing a game of he says/ he says! It will ..............

The first two photos show fitting plywood. These pix weren't meant to illustrate joinery. You'll have to enlarge them. I can take a close up.......

Off topic reminder.....with Internet Explorer browser, CTRL + key magnifies the screen and CTRL - reduces.

JPG · Post by **JPG** » Sat May 23, 2009 11:29 am

dusty wrote:Is the 505506 a Magna Dado Blade incognito as a Shopsmith blade?

AND I was more concerned about the arbor.

As for my comment about craftsmanship - that was NOT directed. I was implying that some machine defects are well hiden in the hands of a craftsman. EXAMPLE: Charlese' dado with a wobble blade. Either his blade performs more like a stacked dado or Charlese uses it differently than I do.
I say that because he gets square bottoms.

Ah - a new nickname. I'll leave the rest to your imagination.

505506 is the molder/dado ARBOR! http://www.shopsmith.com/ownersite/cata ... oarbor.htm

I will post a pix of my variable round bottom 'Magna Precision Dado Blade' after I make it presentable! Decades of NON use has caused it to pick a bit of FE2O3 in spite of a layer of oil. Another test for Evaporust!

I do not think Charlese is/has a Flat Butt! I do wonder if a chisel/scraper/sandpaper got into the mix!

JPG · Post by **JPG** » Sat May 23, 2009 11:30 am

mickyd wrote:Off topic reminder.....with Internet Explorer browser, CTRL + key magnifies the screen and CTRL - reduces.

Firefox also!!!

charlese · Post by **charlese** » Sat May 23, 2009 1:02 pm

Hang on, I'll take some more photos. The blade I use yields very flat bottoms of dados when set at around 3/4". There are slight irregularities when dialing down to 1/4" (a slop toward one side) and dialing up to larger (a raised center) Anyway I'll attempt to get more pix. I don't believe my dados have anything to do with craftsmanship - I just take them as they come. (more photos)

JPG - Thanks for saying you don't think I am/have a flat butt

But my LOML says I do!

BTW- I'll also look at a report in one of the recent magazines about rough bottoms from stacked dados.

ldh · Post by **ldh** » Sat May 23, 2009 1:30 pm

I have found this very inexpensive 6" dado blade works great on my MarkVs.
I think the 6" works best for the SS. I use 8" Freud and Systimatic on my Delta table saw
ldh

Delta 35-530 Stackable Safety Dado Carbide Tipped Blade Set

Item#: DEA 35-530
Condition: New
Availability:
Usually ships within 1 day
Shipping: $6.50
Total for your entire order!
Ground shipping to the lower 48 states
Our Price: $47.77
2+ / $36.00
10+ / $29.

fjimp · Post by **fjimp** » Sat May 23, 2009 1:43 pm

Ctrl + Ctrl - fat _ _ _ _ There is no end to what one might learn here. fjimp

charlese · Post by **charlese** » Sat May 23, 2009 1:47 pm

One of the things I love about my wobble is the speed it will adjust to different widths. Even fractions of widths to conform to plywood. It too just 45 minutes to go to the shop, snap 13 photos, set up the dado in the machine, adjust to 3 widths, cut them and get back to the computer.

Here are the photos:
[ATTACH]4623[/ATTACH]

[ATTACH]4624[/ATTACH]

[ATTACH]4625[/ATTACH]

[ATTACH]4626[/ATTACH]

[ATTACH]4627[/ATTACH]

charlese · Post by **charlese** » Sat May 23, 2009 1:55 pm

Rather than display all of the photos, I'll just show those showing the shape of the various dados. Notice that the 1/2" dado show a slightly sloped bottom from left to right, but the amount of slope is not great. The 1/2" dado is the second photo.

Yes, I grbbed a piece of scrap wood. You'll notice the split (check) through the piece.

[ATTACH]4628[/ATTACH]

[ATTACH]4629[/ATTACH]

[ATTACH]4630[/ATTACH]

[ATTACH]4631[/ATTACH]