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Clausing 8540 over head support & brace & Draw bar

Discussion in 'CLAUSING-COLCHESTER & BANTAM' started by scwhite, Mar 19, 2017.

  1. scwhite

    scwhite United States Active Member Active Member

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    I just bought a Clausing 8540 horizontal milling machine and I need to see if anyone has prints for
    or can draw up some good sketches for the draw bar, overhead support, and brace to the overhead support to the knee. Or even some real good pictures with a ruler
    would be of some good help
     
  2. Rootpass

    Rootpass United States H-M Supporter - Premium Content H-M Supporter-Premium

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    This old Tony made a video of him making some of the parts you are asking about. Different machine but still.

     
    grantj likes this.
  3. scwhite

    scwhite United States Active Member Active Member

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    Yea I seen that video it is a good one
    I will do something very similar to that
    I would like to make it out of Gray Iron
    If I can get some large enough
     
  4. scwhite

    scwhite United States Active Member Active Member

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    I am thinking 4140 on the draw bar
    Gray Iron on the Brace if I can find it
     
  5. frankly2

    frankly2 Iron Registered Member

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    Most steel suppliers can also supply cast iron of various sizes and alloys.

    http://www.indiastudychannel.com/re...ypes-of-Iron-and-its-material-properties.aspx
    Grey cast iron and its properties:


    Grey cast iron can also be produced from pig iron.
    • Grey Cast Iron is an alloy of Carbon & silicon with iron.

    • Carbon percentage of Grey Cast Iron: 2.5 to 3.8 %

    • Grey cast iron is having Self damping, good antifriction properties and also having lowest melting point. This is the reason why grey cast iron is mostly used in machining bed to reduce and absorb the vibration due to self damping properties.

    • Applications of Grey Cast Iron : Machine tool structure, manhole covers , piston rings, rolling mill. Water pipes.
     
    Last edited: Mar 27, 2017
    scwhite likes this.
  6. scwhite

    scwhite United States Active Member Active Member

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    I found a supplier to order my cast iron
    Grade # 2
    I bought my 4140 to make the draw bar out of and the draw bar nuts .
    29-30 RC
    I went to pick up my cast iron . And they had both
    Pieces of my 4140 and a nice 2" thick x 9"
    304 Stainless Steel laying there .
    Someone took it upon them selves to change my order . Or the just made a big mistake .
    I had to order it agin
     
    Last edited: Mar 29, 2017
  7. Silverbullet

    Silverbullet Active Member Active Member

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    We need pictures YUPP , as others told me it never happened , lol
    Fun to find a good fixer upper . I'm waiting it seems forever , but if they operate on my back I'd be out for a few months.
     
    scwhite likes this.
  8. scwhite

    scwhite United States Active Member Active Member

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    I still can't figure out how to do pictures
    I am trying to post some but don't know how
     
  9. scwhite

    scwhite United States Active Member Active Member

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    FOMOGO likes this.
  10. scwhite

    scwhite United States Active Member Active Member

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    This is the Clausing 8540 horizontal mill that I am going to make the draw bar , and Overhead bracket ,
    And the Overhead brace .
     
  11. scwhite

    scwhite United States Active Member Active Member

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    If I could find a good factory used one I would just buy it .
    But I have struck out every where I turned .
    So here Goes . The draw bar will be first .
     
  12. Silverbullet

    Silverbullet Active Member Active Member

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    No problem you did good , took me months to figure how to get them to send , still have trouble doing it. Looks like a nice machine , wish one would fall in my lap. Well not really but I'd take if too.
    That 304 stainless would be nice but tuff on the machining side.
     
    scwhite likes this.
  13. scwhite

    scwhite United States Active Member Active Member

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    I got started on my draw bar today
    Finished one piece of it the Maine 16" x 1/2 - 4140HT
    That stuff is tuff 29 - 30 on RC scale
    I had to thread it with 1/2 HSS it worked it over .
    I am working on the nuts now . All of my taps are to dull to cut that 4140 .
    I am going to buy some new ones tomorrow
    And finish both nuts one is a acorn nut.
    One just has two flats cut on it .
     

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  14. scwhite

    scwhite United States Active Member Active Member

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    Here is my draw bar without the nuts
     

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  15. scwhite

    scwhite United States Active Member Active Member

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    I picked up my gray iron billet today
     

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