I am experiencing a rough cut when making a rip cut on the table saw that has me puzzeled. The cut itself is ok but as I am making the cut the blade “chatters” or rather clunks as though a tooth is taking a bigger bite than it should. I have changed to a newly ground blade and have raised the blade height. It is more profound on 3/4″ and thinner materials. Any body have any comments.
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Replies
How about some more information. What saw, is it tuned, how is the fence set, what blade, hard or soft wood, cutting a sliver off or cutting in the middle of a wide board, splitter, riving knife, where are your eyes looking when making the cut, rate of feed?
In addition to the info requested above, when was the last time you aligned your saw? The blade should be set exactly parallel to the miter slot and then the fence should also be set parallel to the miter slot. Finally, what is the condition of the blade? Has it been sharpened recently?
Blade chatter
Closely inspect that recently sharpened blade. Just because it was recently sharpened, that doesn't mean that all is right with it. Sometimes teeth don't get ground evenly. Check to make sure that you still have ample side clearance on the teeth. I have even seen blades come back with a new tooth brazed on to replace a chipped one and not ground down to the same size as the others.
I notice that the problem occurs with thin material and that you raised the blade. There's an old rule of thumb that the saw should always have at least 3 teeth engaged in the work. You don't say how many teeth are in the saw, but if you are ripping thin material using a saw with relatively few teeth and the blade set high so that the cutting angle is steep, you may have only one or two teeth engaged in the workpiece. Under those conditions the saw teeth can grab at the workpiece.
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