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    To convert arc sec. into inches

    1 second =.000005" per 1"
    1 second = .000048" per 10"
    1 second = .000058" per 12"
    
    The formula works for both front to back and left to right

    Tip

    Use the side of the table were the errors cancel each other to your advantage until you can get it fixed

       
       
     
     

     

    CALCULATIONS FOR ROTARY TABLE AND SADDLE WEAR ISOLATION

    You would use it to determine which part of your machine needs service

    You will need a precision level and a calculator

    Step one

    Level the machines bed ways for datum . We will assume the machines bed ways are level with the horizon in the following procedures.

    Step Two

    Take the readings and plug them into the formula

    Be especially careful of the signs +/-

    
    Formula
    
    (Position A Reading) - (Position B Reading) /2 = Saddle Error 

     

    (Position A reading) - (Saddle Error) = Rotary Table Error

    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
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