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Thread: Design / Maths question

  1. #1
    Join Date
    Dec 2006
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    Essex, UK
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    Default Design / Maths question

    ok here the situation, ive got a bit a aluminium 70mm wide.

    i will be using a 4mm flute/cutter.

    i need to work out equal spacing so i can mill, gap mill gap mill gap. but everything needs to be equal.

    so what gap size between each cut? cant be any thinner than 2mm
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  2. #2
    Join Date
    Jun 2009
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    St. Louis, MO
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    Quote Originally Posted by andy_con View Post
    ok here the situation, ive got a bit a aluminium 70mm wide.

    i will be using a 4mm flute/cutter.

    i need to work out equal spacing so i can mill, gap mill gap mill gap. but everything needs to be equal.

    so what gap size between each cut? cant be any thinner than 2mm
    Cut offset 6.7272... wall 2.7272...

  3. #3
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    Quote Originally Posted by laserist View Post
    Cut offset 6.7272... wall 2.7272...
    i dont understand that?
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  4. #4
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    Quote Originally Posted by andy_con View Post
    i dont understand that?
    10 cuts 4mm cutter each cut is offset 6.7272 (repeating decimal)
    Start with a 2.7272 wall you'll have 11 fins and 10 cuts

    10x6.7272 equals 67.272
    70-67.272 equals 2.728

  5. #5
    Join Date
    Dec 2006
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    oh right im with you.

    but will that leave a 2.7 wall either end?
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