Definition of screw gauge error
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Error When the plane surface of the screw and the opposite plane stud on the frame are brought into contact, if the zero of the head scale lies below the pitch scale axis, the zero error is positive. For example the 5th division of the head scale coincides with the pitch scale axis, then the zero error is positive.
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2
Answer:
Error When the plane surface of the screw and the opposite plane stud on the frame are brought into contact, if the zero of the head scale lies below the pitch scale axis, the zero error is positive. For example the 5th division of the head scale coincides with the pitch scale axis, then the zero error is positive
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