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Dado Width Question

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Forum topic by generic posted 05-01-2014 03:23 PM 779 views 0 times favorited 7 replies Add to Favorites Watch
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generic

103 posts in 1065 days


05-01-2014 03:23 PM

I am using my crosscut sled and Dado set to cut tenons. In the above picture I installed a full Dado set and I still have half an inch or so of arbor. In a recent purchase of some clamps, the seller gave me an almost new 8” Freud stacked dado set which happens to be the same as what I already had.

My question is is there any reason I would’nt be able to add some of the chipper from the second dado set as long as I leave enough room for the arbot nut? The saw is a 5 hp, 14” cabinet saw (G7209 Grizzly) with interchangable arbor extentions. Currentlly I have a 5/8” dado arbor extention installed and 8” dado bladed.


7 replies so far

View NiteWalker's profile

NiteWalker

2735 posts in 2043 days


#1 posted 05-01-2014 03:57 PM

The extra weight may put unnecessary wear on the arbor and bearings.

-- He who dies with the most tools... dies with the emptiest wallet.

View Fred Hargis's profile

Fred Hargis

3947 posts in 1959 days


#2 posted 05-01-2014 05:10 PM

The teeth may not line up quite perfectly, leaving scored bottoms. If one set has been sharpened (or not) they may not be all that matched. If that’s the case I suppose you could have them sharpened together specifying yopu want them matched.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Ocelot's profile

Ocelot

1471 posts in 2104 days


#3 posted 05-01-2014 06:36 PM

With 5hp, I can’t imagine that the saw would be a limiting factor on this question. I suppose the real question may be safety. Can you safely use much more dado width? I don’t know. The more you have on there, the more bite it’s going to have on the wood – and the greater risk of kickback.

-Ocelot

View sausageking1's profile

sausageking1

46 posts in 954 days


#4 posted 05-01-2014 07:04 PM

I agree with Ocelot. ..if you do add more, I would make very shallow passes…as well as use some sort of hold down clamp or jig

-- "The difficult I can do right away. .....the impossible will take a little longer! "

View ADHDan's profile

ADHDan

800 posts in 1575 days


#5 posted 05-01-2014 09:00 PM

Bunch of worrywarts on this forum. When has anyone ever gotten hurt by improperly using a 5 HP table saw?

Real answer: I agree with Ocelot. Personally, I’d rather use a thinner dado stack taking two passes at normal depth than an overwide dado stack taking more than two passes at shallower depths. Plus, if you end up needing to cut more of the same I think it’s easier to dial back in on the fence setting than the blade height.

-- Dan in Minneapolis, woodworking since 11/11.

View bigblockyeti's profile

bigblockyeti

3668 posts in 1187 days


#6 posted 05-02-2014 03:05 AM

My only concern would be that already mentioned of the total height of the chippers if one set had been sharpened and another hadn’t. Provided you have an insert plate (if not a zero clearance insert) that will handle the width I certainly wouldn’t hesitate adding more chippers.

View Grandpa's profile

Grandpa

3256 posts in 2142 days


#7 posted 05-02-2014 03:13 AM

put them on and try a test cut in some scrap wood. It the bottom of the cut is smooth then you are good to go. Mix and match as desired but if it isn’t a smooth bottom keep them separated until you have them all sharpened as a set. As long as the arbor nut is full of threads that is all it can hold anyway. If you don’t care about an accurate width you can make cuts side by side like suggested but if you want to make a clean cut and make it to width and depth I would go for the actual size. There is nothing that will bog that saw down. That is my 2 cents

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