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Thread: Spuds

  1. #1
    rgsparber's Avatar
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    rgsparber's Tools

    Spuds

    In the context of machining, a “spud” is a pointed metal rod that is used to locate the center of rotation of a mill at a desired point on the XY plane. This point is usually the intersection of two reference surfaces and both the X and Y axes are zeroed. The spud must be mounted in a collet which requires any cutter to be removed. This article presents two tools that avoid disturbing the cutter.

    If you are interested, please see

    http://rick.sparber.org/spud.pdf


    Your comments are welcome. All of us are smarter than any one of us.
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  2. The Following 2 Users Say Thank You to rgsparber For This Useful Post:

    kbalch (06-04-2015), Paul Jones (06-05-2015)

  3. #2
    kbalch's Avatar
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    Thanks Rick! I've added your Machining Spuds to our Machining and Measuring and Marking categories, as well as to your builder page: Rick Sparber's Homemade Tools. Your receipt:

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  4. #3
    Supporting Member Christophe Mineau's Avatar
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    Christophe Mineau's Tools
    Hi Rick,
    Very clever !
    For my understanding, why "spud" ? I had a look into my dictionary and I found : potato ?

    Little comment, the last method for touch down with ohm-meter : why did you change the bit in the chuck (I thought the whole interest was not to ?)
    Thanks
    Cheers !
    Christophe
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  5. #4
    Supporting Member Christophe Mineau's Avatar
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    Christophe Mineau's Tools
    PS Ken, I can't see the two pictures above.
    Cheers !
    Christophe
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    Visit my Website : http://www.labellenote.fr/
    Facebook : La Belle Note
    All my personal works, unless explicitly specified, are released under
    Creative Commons BY-NC-SA license.

  6. #5
    rgsparber's Avatar
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    rgsparber's Tools
    Quote Originally Posted by Christophe Mineau View Post
    Hi Rick,
    Very clever !
    For my understanding, why "spud" ? I had a look into my dictionary and I found : potato ?

    Little comment, the last method for touch down with ohm-meter : why did you change the bit in the chuck (I thought the whole interest was not to ?)
    Thanks
    Christophe,

    I have no idea why a metal rod with a point on it is called a spud. The term is used both for a tool to find center and also by workers to align holes in I beams so a bolt can go through. Crazy English!

    The ohm meter was used to check accuracy and is not part of normal use.

    Keep up YOUR great work. I enjoy seeing all of your inventions!

    Rick

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    Supporting Member Paul Jones's Avatar
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    Paul Jones's Tools
    Hi Rick,
    This is a great idea and I can use the pointed "spud" tool for my milling work I do with my small Unimat SL 1000. I must first remove the milling cutter or spotting drill to find a new location with a pointed rod and there is never a lot of room to do the tool exchanges. Your spud tool idea is exactly what I needed for work with the Unimat.
    Thank you, Paul

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    Quote Originally Posted by Christophe Mineau View Post
    PS Ken, I can't see the two pictures above.
    OK, refresh your page and see if the photos are visible now.

    Ken

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    rgsparber's Avatar
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    Paul,

    I look forward to seeing what you make.

    Rick


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  10. The Following User Says Thank You to rgsparber For This Useful Post:

    Paul Jones (06-06-2015)

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