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  1. #1
    jstevenj is offline Plastic
    Join Date
    Apr 2003
    Location
    new albany, ms, usa
    Posts
    28

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    Hello,
    I just purchased a mill that came with what I think is called a Cherrying attachment. It is an attachment simular to a broaching head that fastens on the back of the mill head. It has a powered spindle and a crank wheel. You put a ball endmill in the spindle and rotate the handle to make the endmill travel a circular path up and down.

    I'm looking for information on this type of attachment, any help would be appreciated. This is a Bridgeport brand and looks really old but in perfect condition. I was told by the guy I bought it from that it was bought for a particular job and never used again.

    I have a Lagun mill forsale in the Classified section also, please look. A picture is on my sebsite at www.geocities.com/jarvisknifeworks

    Thanks, Steven

  2. #2
    Peter S is offline Titanium
    Join Date
    May 2002
    Location
    Auckland, New Zealand
    Posts
    3,962

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    If you can find a Bridgeport manual from 1970's, my one has 3 pages on operation of the 'T-Head", also parts drawing and parts list.
    Here is description from a BP catalogue;

    "Cherrying Attachment.....for producing circular shapes (concave or convex) and provides a very economic means of doing work which would otherwise require very expensive machine tools or many hours of costly and difficult hand work.
    The spindle, which carries the die sinking cutter, is caused to move through a circular path by means of the handwheel."

    Can be used to produce conical forms, both convex and concave.

    Just to put in to perspective, this catalogue is from the 1960's, it also features this Bridgeport, a "Moog Hydra-point three-axis numerically controlled milling machine", with pneumatic tape reader.

    Here is a link with parts drawing of the 'T-Head', but the 1970's BP manual has a better drawing than this.

    http://www.frugalmachinist.com/bp1j.html

  3. #3
    timekiller's Avatar
    timekiller is online now Stainless
    Join Date
    Mar 2003
    Location
    Huntsville, AL U.S.A.
    Posts
    1,056

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    Peter S
    You're correct on the age of the Moog Hydra-point. Mine still has the orginal paint. That 4 hour warmup prevented mine from being worn much "ex-government machine". That is also the reason I updated to electronic controller.

  4. #4
    mm
    mm is offline Aluminum
    Join Date
    Mar 2003
    Location
    NE Iowa, USA
    Posts
    80

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    Steven,

    I think there is a copy of the manual for the cherrying head in the dropbox. I tried to check, but it seems not to be working right now. -- mm

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