• 1-888-TEC-EASE
  • Outside USA: 1-716-785-6015
Tec-Ease Coupon GD&T Textbooks GD&T Training GD&T Public Seminars GD&T Computer Based Training GD&T Reference Material
Profile Can Control Location of Irregular Features
(In accordance with Y14.5M-1994 standard)

PDF of this Tip

The September 2000 Tip illustrated how to control the size and form of irregular and complex features using a Profile of a Surface control without datum references. This type of feature may use either Profile of a Surface or Position to control location and orientation relative to datum references. On the drawing below, the upper segment of the Profile of a Surface callout controls the location and orientation of the hex with respect to the datum reference frame established by A, B and C.

The figure shown below is a possible gage that might be used to inspect the 0.4 profile tolerance. The values shown are theoretical design values which do not include gage tolerance and wear allowance.

Back to Tips Tip added Oct 2000