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IndustryArena Forum > General Manufacturing Processes > Milling > Flipped part and chamfers are offset on x axis
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  1. #21
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    Jan 2005
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    Re: Flipped part and chamfers are offset on x axis

    Quote Originally Posted by dazp1976 View Post
    Depending on the hole size, I kept a load of broken end mills of varying sizes.
    I use the shanks of these fitted into the spindle nose to line up to a drilled hole. Generally between sizes 3-8mm.
    Broken End Mills, where do they come from, I have hundreds of End Mills but no broken ones.

    Yes this is a way to do it if you have +/- .005" on a part tolerance.

    Gauge Pins or bar stock work for this rough hole location method as well.
    Mactec54

  2. #22
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    Aug 2009
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    1114

    Re: Flipped part and chamfers are offset on x axis

    ...use a nevusor nully Dial Indiccator...when Jig boring holes
    https://www.ebay.com/sch/i.html?_fro...apid&_osacat=0

  3. #23
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    Jan 2018
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    942

    Re: Flipped part and chamfers are offset on x axis

    Quote Originally Posted by mactec54 View Post
    Broken End Mills, where do they come from, I have hundreds of End Mills but no broken ones.

    Yes this is a way to do it if you have +/- .005" on a part tolerance.

    Gauge Pins or bar stock work for this rough hole location method as well.
    + remember that, if you enter side 1 from say bottom left and flip it over left to right. Enter side 2 from bottom right, ergo opposite side. This helps against a machine that has some backlash.

  4. #24
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    12902

    Re: Flipped part and chamfers are offset on x axis

    Quote Originally Posted by dazp1976 View Post
    + remember that, if you enter side 1 from say bottom left and flip it over left to right. Enter side 2 from bottom right, ergo opposite side. This helps against a machine that has some backlash.
    Backlash is still there no matter how you look at the part, if indicating a Hole, you will see any backlash if there is any, with using a pin you won't know what or where you are with the machine backlash.
    Mactec54

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