HEIDENHAIN ND 1300 VED and Crosshair Systems - Manual (Page 182)

162 QC-300 Series User’s Guide
Parallelism
Parallelism tolerances can be applied to lines and are used to specify
the acceptable deviation from a line perfectly parallel to a Reference
feature.
Enter the acceptable parallelism deviation into the Tol Zone data field,
and then enter the number of the reference feature for the Parallelism
tolerance into the Ref Feature data field.
Perpendicularity
Perpendicularity tolerances can be applied to lines and are used to
specify the acceptable deviation from a line perfectly perpendicular
to a Reference feature.
Enter the acceptable perpendicularity deviation value into the Tol
Zone data field, and then enter the number of the reference feature
for the Perpendicularity tolerance into the Ref Feature data field.
Angle
Angle tolerances can be applied to lines and angles. The tolerance screens are identical, and are used to
specify the acceptable deviation from a nominal angle.
Enter the allowed angle limits
into the Limit data fields as
+/- ranges or as absolute limits.
Touch the Limit data fields to
toggle between +/- ranges or ab-
solute limits.