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Thread: Bandsaw blade sharpening

  1. #1

    Bandsaw blade sharpening

    Does anyone sharpen dull bandsaw blades? I hit a hidden nail with mine and it seems like a waste to get rid of it? OR Have you found another use for dull blades?
    Bob Anderson

  2. #2
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    I use the wider blades for scratch-stock blade material. Old recip-saw blades work as well.
    Any sufficiently advanced technology is indistinguishable from magic.
    - Arthur C. Clarke

  3. #3
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    I've sharpened bandsaw blades (105" 3tpi) with a Dremel spinning a small cylindrical stone. It worked to a certain degree for my type of work (cutting turning blanks) but it wasn't as good as a new one. Now that I've started using $9.00 blades that are as good or better than the $20.00 blades, it's not worth the trouble for me to sharpen them.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

    workingwoods.com

  4. #4
    Quote Originally Posted by Vaughn McMillan View Post
    I've sharpened bandsaw blades (105" 3tpi) with a Dremel spinning a small cylindrical stone. It worked to a certain degree for my type of work (cutting turning blanks) but it wasn't as good as a new one. Now that I've started using $9.00 blades that are as good or better than the $20.00 blades, it's not worth the trouble for me to sharpen them.
    $9.00 blades from???

    I do resharpen blades to cut green wood for bowl blanks..
    Remember the tea kettle - it is always up to its neck in hot water, yet it
    still sings!

  5. #5
    Yeh, $9 blades wouldn't be worth sharpening. I think these were 12 tpi, 105 inch so I think a guy would go blind before he finished sharpening with a dremel. I think these were about $16. Still not really too much. but enough to make me more careful.
    Bob Anderson

  6. #6
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    A search will find a good tut. here on resharpening BS blades.
    But, hitting a nail is pretty fatal to a blade. You are sure to have nicks, kinks and other nasties on that blade now. My suggestion is to discard and buy new.
    "Folks is funny critters."

    Think for yourselves and let others enjoy the privilege to do so, too. ~Voltaire

  7. #7
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    When they're as cheap as they are, it doesn't make very good sense to sharpen 'em unless you're REALLY STRAPPED for money. There are all sorts of useful things you can do with dull bandsaw blades, so don't throw it away.

    Now, if it was a $50 blade I'd say ya might want to resharpen it. Would you send a table saw blade out to be sharpened, though, if you had bought it as cheap as you bought that bandsaw blade? Prob'ly not.
    -- Tim --

  8. #8
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    I do resharpen my blades. I have a high speed pencil grinder (air driven). I use a diamond burr that is slightly conical. I sharpen the teeth alternately to different angles by hand guesstimate. The idea is this: The diamond will not wear like a stone so the profile stays relatively the same. The angle is set by angling the burr up and down alternately with successive teeth with a slight angle toward the back of the blade. I try to be careful to not burn nor change the profile of the tooth point.

    This works for me and I do a lot of re-sawing and cutting of bowl blanks so blades take a beating.

  9. #9
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    Quote Originally Posted by Paul Downes View Post
    I do resharpen my blades. I have a high speed pencil grinder (air driven). ...The diamond will not wear like a stone so the profile stays relatively the same...
    Not true, though. It'd be true if you were grinding carbide, but high-speed diamond erodes in contact with hot steel. The iron in the steel actually dissolves diamond; it's one of the very few things that'll do that.

    Diamonds aren't used to grind steel in industry for that very reason. Instead, aluminum-oxide stones are used for the purpose.
    -- Tim --

  10. #10
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    Ever since Tod Evans convinced me to try them, I've been very happy with the blades from Ellis Manufacturing.

    http://www.ellissaw.com/

    They don't accept online orders (phone only) and they have a minimum of $50 per order, but I like their blades as moch or more than the blades I was getting from Timberwolf (Suffolk).
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

    workingwoods.com

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