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Thread: Bit doesn't quite touch board during loading....

  1. #21
    Join Date
    Feb 2007
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    SouthWest Ohio
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    Good thought, this test only requires pulling the flex-cable out of the Z-truck.

    If I recall correctly, that cable-catching was an issue after they changed the motor cooling-fins.
    They started putting washers behind the two screws on the left side of the top plastic - that the flex cable sticks through.
    Ken,
    V-1, 2, & 3

    When the People fear their Government, there is Tyranny.
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  2. #22
    Join Date
    Sep 2008
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    Nuevo, CA
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    Check for junk behind the Z truck jamming the belt. I had a Z failure that was a wood chip in there. Had to remove the Z truck to get it clear.
    Clint
    CarveWright StartU team member
    Web Site WWW.clintscustomcarving.com

  3. #23

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    Guys, I appreciate the advice, but please read the whole thread for details before you post suggestions, as some thing have been ruled out.
    I've already stated that there is no belt obstruction.
    It's a mechanical (read: feels 'hard', metallic, like rolling over a notch) clunk, I know what wire cable interference feels like- this has no 'give'.
    Also, I've stated that the interior is dust-free when running, and it bears mentioning now that I've only run the 1/16" carving bit with no cut-outs or cut-off of pieces, so all there's been is dust- no chips or chunks.
    I'm starting to think about whether it's something on the motor side.

  4. #24
    Join Date
    Feb 2007
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    SouthWest Ohio
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    The posts about taking the Z motor off or taking the flex shaft out do not conflict with your posts.
    Popping the flex shaft off is a simple test to make sure it isn't catching on the top plastic.
    Taking the belt loose will tell you where the problem lies.
    Ken,
    V-1, 2, & 3

    When the People fear their Government, there is Tyranny.
    When the Government fears the People, there is Liberty.
    - Thomas Jefferson

    You must be the change you wish to see in the world.
    - Mohandas Gandhi

  5. #25
    Join Date
    Aug 2008
    Location
    north ont Canada
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    2,357

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    Quote Originally Posted by eastcutty View Post
    Guys, I appreciate the advice, but please read the whole thread for details before you post suggestions, as some thing have been ruled out.
    I've already stated that there is no belt obstruction.
    It's a mechanical (read: feels 'hard', metallic, like rolling over a notch) clunk, I know what wire cable interference feels like- this has no 'give'.
    Also, I've stated that the interior is dust-free when running, and it bears mentioning now that I've only run the 1/16" carving bit with no cut-outs or cut-off of pieces, so all there's been is dust- no chips or chunks.
    I'm starting to think about whether it's something on the motor side.
    Your gear shaft could be broken , it happen to me not to long ago , you would have to take the motor and casing of to check
    Henry

    Every one has a photographic memory. Some just don't have film.

  6. #26

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    Above video link will show the behavior of the truck movement

    https://www.facebook.com/photo.php?v=10202954819264812

  7. #27
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    Sep 2007
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    Northern Colorado
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    Quote Originally Posted by eastcutty View Post


    Above video link will show the behavior of the truck movement

    https://www.facebook.com/photo.php?v=10202954819264812
    I got this when going to your link..

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    RingNeckBlues
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  8. #28
    Join Date
    Dec 2010
    Location
    Coeur D'Alene Idaho
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    630

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    Link works for me . I would check out the gears.

  9. #29
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    Nov 2008
    Location
    Vancouver Island
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    I would first do as DocWheeler suggested. Take off the allen bolt with the spring on top and loosen the two screws holding the z motor pack on. Now, with the belt loose, try it again. You will be able to tell whether it is the truck or the motor.

  10. #30
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    Nov 2008
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    Vancouver Island
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    I think it is a roller. The rollers only go around once as the truck moves from top to bottom whereas the gears go around more than once. A bad gear would have reoccurring bad spots.

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