HEIDENHAIN ND 1300 VED and Crosshair Systems - Manual (Page 181)

161
7
Tolerancing
Runout
Runout tolerances can be applied to circles and arcs. The tolerance
screens are identical, and are used to specify the acceptable deviation
from a circle or arc around the center of the Reference feature axis.
Enter the acceptable position deviation into the Tol Zone data field
and then enter the number of the reference feature for the runout toler-
ance into the Ref Feature data field.
Roundness
Roundness tolerances can be applied to circles and arcs. The tol-
erance screens are identical, and are used to specify the acceptable
deviation from a perfect circle or circle segment.
Enter the acceptable form deviation into the Tol Zone data field.
Concentricity
Concentricity tolerances can be applied to circles and arcs. The toler-
ance entry screens are identical, and are used to specify the accept-
able position deviation from a circle or arc concentric to a Reference
feature.
Enter the acceptable position deviation into the Tol Zone data field
and then enter the number of the reference feature for the Concentric-
ity tolerance into the Ref Feature data field.
Straightness
The straightness tolerance can be applied to lines and is used to
specify the acceptable deviation from a perfect line.
Enter the acceptable form deviation into the Tol Zone data field .
Tolerance Types