HEIDENHAIN IK 5494-2D - Manual (Page 233)

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6
Tolerancing
Circularity
Circularity tolerances can be applied to arcs and circles.
The tolerance entry screens are identical, and are used to
specify the acceptable deviation from a perfect circle.
Enter the acceptable position deviation value into the Tol
Zone data field provided and then click OK.
Straightness
The straightness tolerance can be applied to lines and is
used to specify the acceptable deviation from a perfect
line.
Enter the acceptable position deviation value into the Tol
Zone data field provided and then click OK.
Concentricity
Concentricity tolerances can be applied to arcs and circles.
The tolerance entry screens are identical, and are used to
specify the acceptable deviation from a circle concentric
to a Reference feature.
Enter the acceptable position deviation value into the Tol
Zone data field provided and then click OK.
Tolerance Types