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  1. #1
    Join Date
    Jan 2007
    Location
    Melbourne, Australia
    Posts
    73

    Default Diagnosing blade issue

    Hi all

    I've recently purchased a refurbished 2nd hand Carbatec 14" bandsaw. It has a 6 mm, 6 tpi blade fitted.

    Bearings are all nice, tracking is fine. I can't see any back and forth motion which would suggest that the weld was crocked.

    On cutting, there is a distinct "chug-chug" sound, and there are distinct cut marks on the timber.

    Spinning the wheels by hand, with the timber in place, I've narrowed the sound down to when the blade weld passes the work piece.

    Having a quick look at the join, it appears that the teeth on either side of the weld (and on the weld) have no set. Could this be the origin of my issue?

    Are there any other suggestions?

    Thanks

    Matthew
    Matthew


    Be alert; Australia needs lerts.

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  3. #2
    Join Date
    Apr 2001
    Location
    Perth
    Posts
    10,810

    Default

    Simple method to determine this - try another blade.

    I would anyway be looking at one with 3 tpi, not 6 tpi. The latter is more likely to have difficulty shedding sawdust, and this will create problems with tracking.

    Regards from Perth

    Derek
    Visit www.inthewoodshop.com for tutorials on constructing handtools, handtool reviews, and my trials and tribulations with furniture builds.

  4. #3
    Join Date
    Oct 2014
    Location
    South Australia
    Posts
    86

    Default

    Hey Masher,
    I agree with Derek re trying another blade,although I have never heard of a 6 mm blade with 3 tpi ( I need to get out more,
    6 mm blades cost bugger all, I'd get onto Henry Bros or similar and buy some quality.
    I am as tight as a fishes proverbial, but I have learnt the hard way that cheap consumables are cheap for a reason.
    Cheers,

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