Tool Nose Radius (formula)

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Thread: Tool Nose Radius (formula)

  1. #1

    Default Tool Nose Radius (formula)

    Drawing and data, see URL.


    I know how to calculate Z without tool nose radius.

    https://www.upload.ee/image/12789436...ose_Radius.png

    Dont know how to calc with tool nose radius...

    How mastercam calc:
    Z-4.685
    Z-5.766



  2. #2
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    Default Re: Tool Nose Radius (formula)

    tool radius - (tool radius x tan (angle ÷ 2) ) = Z axis comp.



  3. #3

    Default Re: Tool Nose Radius (formula)

    calculator: https://www.desmos.com

    I added a formula, but I can't get the right answer.


    I think I must use cos/sin but where.

    Mastercam code:
    Z-4.685
    Z-5.766



  4. #4
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    Default Re: Tool Nose Radius (formula)

    Quote Originally Posted by cogsman1 View Post
    tool radius - (tool radius x tan (angle ÷ 2) ) = Z axis comp.
    This.

    0.8 - (0.8 x TAN 22.5) = 0.4687mm

    0.03125 - (0.03125 x TAN 22.5) = 0.0183”



  5. #5
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    Default Re: Tool Nose Radius (formula)

    Or you could be lazy like me. I kept one of our CHNC programming books from when I started back in 1985. In the back of the book it gives X and Z tool compensation in one degree increments for several different size radii. Maybe you could find a used book or ask me to fax copies of the pages to you.



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Tool Nose Radius (formula)

Tool Nose Radius (formula)