Reply by Charlie

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Posted on Grizzly G0661 Table saw burning while cutting

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1100 posts in 2250 days

#1 posted 04-29-2013 10:13 PM

#1 check riving knife alignment. If it is out of alignment such that it is too far toward the left of the blade, it can tend to pull the piece toward the side of the blade (the side facing the fence). The tension in the cut off tries to close the kerf (yes I know it can go the other way too) and the cut off hits the riving knife and basically then tries to pull your GOOD piece toward the side of the blade. I say this because you mentioned it seems to be burning more on the good side of the cut and less on the cut off.

The “toe-out” on the fence is a bit much. My blade-to-miter-slot alignment is within a half a thousandth as best I can measure (I just got lucky) and my fence toe-out is about .003.

I cut a lot of hard maple for face frames last summer and the maple was definitely more finicky about getting things aligned. Cut a piece of poplar… perfect, with no burn at all. Cut a piece of maple the same thickness right afterward… hmmmmm… some burning. I was told by someone (can’t remember who) that the sugars in the maple make it more prone to burning.

Whatever…. once I tweaked the saw to get clean cuts on maple, it seemed to cut everything else better as well.


it’s wood. :)

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