Table saw flatness

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Forum topic by BlacksheepWW posted 07-18-2010 03:31 AM 1111 views 0 times favorited 4 replies Add to Favorites Watch
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9 posts in 3290 days

07-18-2010 03:31 AM

I have an older Delta contractor saw, I was trying to adjust the blade to 90deg. and to the left of the blade I’d get it set to 90deg. and right of the blade would be out. so I put a straight edge across the width of the cast iron top over the throat plate area and from left to right of the top, its not flat by .016” out.
I was wondering what is the normal flatness and how to correct this problem or adjust for it.

4 replies so far

View araldite's profile


188 posts in 3730 days

#1 posted 07-18-2010 03:51 AM

Check without the throat plate. Make sure you’re testing to the plate of the blade and not to the tooth.

-- Failure is the road to success if you learn to learn from your mistakes - Vince, Greenville, SC

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18522 posts in 4002 days

#2 posted 07-18-2010 08:03 AM

Hmmmm! Learned something on here again today :-) I never would have thought of that.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View BlacksheepWW's profile


9 posts in 3290 days

#3 posted 07-18-2010 07:23 PM

I did check it with the throat plate off and with the blade body and not on the teeth.
At first I thought the problem was the plate, but it’s not.

View knotscott's profile


8267 posts in 3701 days

#4 posted 07-18-2010 10:26 PM

The best method for checking flatness is to check the accuracy of the cut. It takes a pretty hefty deviation from flat to effect the cut, depending on where it is.

Tom Hintz's TS alignment technique

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

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