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Datto Tearout

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Forum topic by nailhead49 posted 04-03-2010 03:15 AM 898 views 0 times favorited 6 replies Add to Favorites Watch
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nailhead49

8 posts in 2696 days


04-03-2010 03:15 AM

Topic tags/keywords: question

I been working on some tenens with no problem, them change set up then went back to the first, now I have tear out, even made a zero clearance throat plate, no change, blades going the right way. Using oak. What did I do?

-- David R www.newwookiee.com


6 replies so far

View oluf's profile

oluf

260 posts in 2501 days


#1 posted 04-03-2010 03:30 AM

Dull tools, missalignment, or taking to deep a cut. Are you cutting with the grain or cross grain?

-- Nils, So. Central MI. Wood is honest.Take the effort to understand what it has to tell you before you try to change it.

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bigike

4050 posts in 2751 days


#2 posted 04-03-2010 04:23 AM

cuttin oak to fast, would be my guess.

-- Ike, Big Daddies Woodshop, http://www.icombadaniels@yahoo.com

View SnowyRiver's profile

SnowyRiver

51452 posts in 2943 days


#3 posted 04-03-2010 02:24 PM

I think those above have covered it. Try slowing the feed rate down and be sure the blade is sharp and aligned.

-- Wayne - Plymouth MN

View knotscott's profile

knotscott

7210 posts in 2838 days


#4 posted 04-03-2010 05:08 PM

Changing from going with the grain to across the grain can cause tear out. Also, some oak is more prone to tear out than others. Some dado blades are more prone to tear out than others, and all dado blades are more prone to tear out if dull and/or dirty. Everything mentioned so far is a variable and a potential cause.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View Bill White's profile

Bill White

4450 posts in 3423 days


#5 posted 04-03-2010 07:14 PM

What dado head are ya usin’? How many teeth are on the outer blades? Are ya sure you have the left and right side outer blades installed correctly?
Gotta ask all the questions….
Bill

-- bill@magraphics.us

View juniorjock's profile

juniorjock

1930 posts in 3228 days


#6 posted 04-03-2010 11:50 PM

You could try using a backer board. I’ve also used tape on the back of the board with good results. Just don’t try using the tape on a board that you will have a cut-off on. Some good tips here. I agree that you should clean the blades first. What brand dado set are you using?

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