Pattern of Features of Size at RMB
Where RMB is applied in a feature control frame to multiple datum features of size used
to establish a single datum, the datum feature simulator of each feature shall be fixed in
a location relative to one another. The datum feature simulators shall expand or contract
simultaneously from their MMB to their LMB until the datum feature simulators make
maximum possible contact with the extremities of the datum feature(s). See Fig. 4-25.