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Thread: What is this,

  1. #21
    Join Date
    Jun 2009
    Location
    san jose, ca. usa
    Posts
    872

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    ok, I think I will take it apart and clean and lube it.

  2. #22
    Join Date
    Dec 2004
    Location
    East Coast, USA
    Posts
    7,766

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    Quote Originally Posted by gambler View Post
    ok, I think I will take it apart and clean and lube it.
    Clean the head, galley, and bilge while you're in there...
    Work hard play hard

  3. #23
    Join Date
    Jan 2007
    Location
    Minnesoa
    Posts
    1,321

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    Quote Originally Posted by Doozer View Post
    Just take the screw out and remove the gib
    and it will be clear to see how they work.
    Nothing is going to boink out at you.

    -D
    Hi,

    Until you pull a gib from a well worn machine and find over a 1/16" of shim stock stuffed in there. That can be a royal pain to shove all that back in there.......
    If you think you understand what is going on, you haven't been paying attention.

  4. #24
    Join Date
    Jan 2004
    Location
    Missouri
    Posts
    30,401

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    Quote Originally Posted by Dan_the_Chemist View Post
    ......
    sink your vangs into the pun.
    Whatcha thinkin he did with those lines? Tied it up too tight so they sank in?

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    Could not resist
    1601

    Keep eye on ball.
    Hashim Khan

  5. #25
    Join Date
    Jan 2005
    Location
    Buffalo NY
    Posts
    4,171

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    Quote Originally Posted by dalee100 View Post
    Hi,

    Until you pull a gib from a well worn machine and find over a 1/16" of shim stock stuffed in there. That can be a royal pain to shove all that back in there.......

    I reground the tapered gib on the Y axis of
    my Van Norman 22LU mill on the surface
    grinder and a sine vise to take some banana
    shapes wear out of it because my table was
    crabbing. I ended up needing .020" shim to
    bring the gib back to range. I found a piece
    of metal banding material was just the trick.
    Super glue to adhere it and off to the races.

    --Doozer

  6. #26
    Join Date
    Dec 2015
    Location
    Chilliwack, BC, Canada
    Posts
    4,924

    Default

    Quote Originally Posted by dalee100 View Post
    Hi,

    Until you pull a gib from a well worn machine and find over a 1/16" of shim stock stuffed in there. That can be a royal pain to shove all that back in there.......
    I'm thinking that even that would not be so bad if the shim were given some holes and a pin or two that rides in the holes to "drag it along" like a well trained dog on a leash. it's only bad if the shim is free to float.

    Most such dovetails also have a locking screw. So even if just that screw acts as the "follow me" pin life would be simple.

    But I'm also thinking that a shim of that sort is more than just wear. Or at least I hope the following is the product..... It would speak to me with a story of a re-build where the dovetails were machined back to flat and true or machined and ground back to flat and true and the shim is the "filler" needed to make up for the removed material. And if things were clean and true I'd be quite happy with it doing its part.

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