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Thread: Table saw blade noise?

  1. #1
    Join Date
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    Table saw blade noise?

    Hi all,
    This has been bothering me for years now, but my blade on my table saw is rubbing, grinding, vibrating (idk) somewhere / somehow against my zero clearance insert. The sound disappears as soon as I take the ZCI off, but as soon as I put it on it comes back. Basically it sounds like the blades is scraping the ZCI, but I can't visually see any traces of that happening. The ZCI fits well and the saw has minimal vibration so I don't think that it's the ZCI itself vibrating. I've fully raised and lowered the blade many times while the saw was running thinking that maybe the blade had a slight wobble and would cut a new groove, but that didn't help either.

    The saw is a old Craftsman 113.

    You guys have any ideas? Its driving me nuts.

    Thanks Michael

  2. #2
    Join Date
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    SE PA - Central Bucks County
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    Could be run-out; could be unbalanced blade; could be a tooth or three that's not ground identically to the others or has been damaged; etc. Could also be bearings on the arbor that causes noise.
    --

    The most expensive tool is the one you buy "cheaply" and often...

  3. #3
    Join Date
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    Columbus, Ohio, USA
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    Are you able to put pressure on the plate safely to see if it is just the plate vibrating?

  4. #4
    Join Date
    May 2005
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    Check to make sure saw blade isn't slightly tilted.
    My old Craftsman table saw was notorious for this.

    Bruce
    Epilog TT 35W, 2 LMI SE225CV's
    CorelDraw 4 through 11
    CarveWright
    paper and pencils

  5. #5
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    Quote Originally Posted by Jim Becker View Post
    Could be run-out; could be unbalanced blade; could be a tooth or three that's not ground identically to the others or has been damaged; etc. Could also be bearings on the arbor that causes noise.
    Jim,
    Maybe my thinking is wrong, but any if those things were happening wouldnt the blade eventually cut a new groove in the ZCI. Or do you think it's so minimal it just barely scrapes?

    Blade is a freud 30t rip (I think). I did have it sharpened once. Wonder if the sharpening service could've done something to it?

  6. #6
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    Quote Originally Posted by Andrew Pitonyak View Post
    Are you able to put pressure on the plate safely to see if it is just the plate vibrating?
    Yea, I'll check that tonight

  7. #7
    Join Date
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    What brand blade? Perhaps you need a "good" blade? Thin kerfs may flutter. Full kerfs may be a bit more stable.

  8. #8
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    Add a blade stabilizer washer and see what happens.

  9. #9
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    Quote Originally Posted by Kyle Iwamoto View Post
    What brand blade? Perhaps you need a "good" blade? Thin kerfs may flutter. Full kerfs may be a bit more stable.
    Freud pro 30t rip I Believe ( not at home to check)

  10. #10
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    Quote Originally Posted by Richard Coers View Post
    Add a blade stabilizer washer and see what happens.
    Never heard of such a thing. I'll check that out.

  11. #11
    Join Date
    Nov 2004
    Location
    Belden, Mississippi
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    Just a thought. Some blades will create a sound while using a zero clearance plate. That's why blades (most) don't have the old style holes in them.
    On the other hand, I still have five fingers.

  12. #12
    Is the ZCI aluminum? Could be just a harmonic. I assume it fits tightly.

    Erik
    Felder USA Territory Representative: Central & South Texas

  13. #13
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    Quote Originally Posted by Erik Loza View Post
    Is the ZCI aluminum? Could be just a harmonic. I assume it fits tightly.

    Erik
    No it's a phenolic one and fits very snug. Thanks though

  14. #14
    Quote Originally Posted by Michael J Evans View Post
    No it's a phenolic one and fits very snug. Thanks though
    OK. What if you enlarged the groove just a little more by hand? To make sure there is 100% no contact between the blade and the insert.

    Erik
    Felder USA Territory Representative: Central & South Texas

  15. #15
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    Quote Originally Posted by Erik Loza View Post
    OK. What if you enlarged the groove just a little more by hand? To make sure there is 100% no contact between the blade and the insert.

    Erik
    That's a good idea and likely what I'll just end up doing. Thanks again

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