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  1. #1
    Gold Member fishfactor's Avatar
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    Aug 2010
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    457
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    Monroe, NC
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    (2) 2014 CAT 299DXHP / FECON

    Default Gyro Trac / Cimaf Owners

    This is what happens when you have hours upon hours sitting in the cab of a mulcher to think of ways to make your life easier. I figured there must be a way to keep a factory like edge on the teeth/knives and came up with this. This is a crude prototype thrown together in a hour. It holds a 8" bench grinder. The angle is adjustable, and gravity keeps pressure on the tooth since the grinder slides on the 2 long bolts. It uses the tooth bolt and the bite control discs on the drum as reference points to assure a consistent angle. If we ever get another slack day I'll make everything on the mill and clean it up a bit, but for now it might be ugly but it works. It takes less than 10 seconds to move the jig to the next tooth. Once any large dings in the tooth are smooth you can walk away and come back in about a minute to move it to the next tooth.




    This is a freshly sharpened tooth that has 63 hours on it.

    No matter what anyone tells you, old fencing, cable, and farm implements that are in the middle of the woods are not your friends!

    Colby
    S & P Land Services

  2. #2
    Platinum Member
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    Nov 2006
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    741
    Location
    Georgia

    Default Re: Gyro Trac / Cimaf Owners

    That is awesome!! I think you just found a side business. Making sharping jigs.
    Robbie Hegwood
    404-379-5897

  3. #3
    Platinum Member
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    Jul 2007
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    956
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    S. Central TX Hill Country

    Default Re: Gyro Trac / Cimaf Owners

    Very ingenious. the only thing I would add would be some guards for the wheels. Those type of wheels are known to fly apart. I've actually seen a piece embedded in someone's skull.
    Brush Chipping and Tree Mulching Texas Style!

  4. #4
    Gold Member fishfactor's Avatar
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    Aug 2010
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    457
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    Monroe, NC
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    (2) 2014 CAT 299DXHP / FECON

    Default Re: Gyro Trac / Cimaf Owners

    Quote Originally Posted by yellowdogsvc View Post
    Very ingenious. the only thing I would add would be some guards for the wheels. Those type of wheels are known to fly apart. I've actually seen a piece embedded in someone's skull.
    The non sharpening wheel still has the guards. I had to take them off the sharpening wheel in order to sharpen the entire cutting edge at the same time. A 10" grinder would solve this but they are a lot heavier and a lot more expensive.
    No matter what anyone tells you, old fencing, cable, and farm implements that are in the middle of the woods are not your friends!

    Colby
    S & P Land Services

  5. #5
    Silver Member
    Join Date
    Dec 2011
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    102
    Location
    Winston Salem, NC
    Tractor
    Kubota l39

    Default Re: Gyro Trac / Cimaf Owners

    If you continue to grind with the side of that wheel you run a high risk of catastrophic failure at high RPM's. I'm not a safety cop and I "bend the rules" too, but be careful.

  6. #6
    Bronze Member Eric H's Avatar
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    Nov 2008
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    Default

    Nice..... I like it and have thought to do the same thing... Wtg.. Ya dont mind if i copy do ya lol

  7. #7
    Silver Member
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    Sep 2011
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    132
    Location
    near Johnstown PA
    Tractor
    Allmand TLB 425

    Default Re: Gyro Trac / Cimaf Owners

    Quote Originally Posted by Dadof3 View Post
    If you continue to grind with the side of that wheel you run a high risk of catastrophic failure at high RPM's. I'm not a safety cop and I "bend the rules" too, but be careful.


    I was thinking along the same lines, If you decide to continue forward using a bench grinder you may want to see if you can source a surface grinder type wheel for it that has the correct rpm rating and arbor size, surface grinding wheels are designed to grind on the face rather than the edge. And maybe fab up some kind of guard for the back side of the wheel towards the grinder operator to limit the directions that the pieces can fly in a wheel failure.

    All in all an excellent creation, that knife looks very sharp, I'm sure there's a noticeable difference in the cutter head performance with sharp knives.


    Ray

  8. #8
    Gold Member cat 297c's Avatar
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    Mar 2009
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    413
    Location
    Semmes, Alabama
    Tractor
    Cat 299D XHP, Cat 297c, Rayco C140

    Default

    Great job fish, I've done the same thing with my angle grinder for my quadco chippers saves me time an it's prefect ever time
    HFM LLC
    251-331-4475
    lifescapes-forestry-mulching.com

  9. #9
    Platinum Member DIRTROAD's Avatar
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    May 2008
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    551
    Location
    SOUTH CAROLINA
    Tractor
    Carolina Clearing, LLC

    Default Re: Gyro Trac / Cimaf Owners

    Awesome Dude!!!! Better get a patent quick.

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