Yes, both features are important in this application. The 2x posts are mounted first, and the clocking of the shaft is not controlled (i.e. contact feature with 3rd component is round). As I said above, the question is partly theoretical and not necessarily tied to this specific application...
Apologies for the delayed response, I was frying bigger fish so to speak. As for application details, this part is a plastic plate that two other components are mounted to. The mounted components need to locate within .010" to each other (and have their own associated tolerances). The 2x 5mm...
The problem is two-fold: we are having trouble meeting the print tolerances in production, and the existing DRF (based on the 2x hole pattern) is not fully representative of the part function. As a result, our parts are functional in the assembly, but are failing inspection. I can measure these...
The 2X holes are important mating features and their location defines accuracy of the greater assembly - this is a highly simplified part that I drew to illustrate the discussion. The location of the center hole is of lower importance, thus the preference for locating from the 2x hole pattern...
Hello All,
This may be a simple question, but I haven't seen a clear illustration that directly addresses my situation. I need to establish a secondary datum using a pair of holes, the datum being the midpoint between the two centers (point P). See the attached sketch for illustration. The...