Jun 7, 2024 · Y14.5-1994 shows perpendicularity to two datums, which I've always used (Fig 6-35, p.182). Y14.5-2009 and 2018 show perpendicularity to two datums but add an angularity …

Jan 9, 2011 · Further questions regarding runout and perpendicularity, if both Fig.9-4 and 9-5 runout callout means perpendicularity, what is the differences between them? Season

Jun 19, 2025 · The perpendicularity requirement could be a refinement of profile modified by <CF> (profile for location could be applied as a "2X" pattern). The role of the 18 non-basic …

Apr 28, 2003 · Yes. That's what I am thinking of. Composite position with A in the upper segment and with no datum feature references in the lower segment would control perpendicularity to A …

Dec 8, 2008 · The perpendicularity callout is a zone tolerance of the perpendicularity of the flange on the tube to the axis of Datum A. You take the basic location of the flange and project a line …

Apr 6, 2019 · In absence of a perpendicularity tolerance, the part can be any parallelogram because by definition (see para. 2.7.4 in Y14.5-2009) Rule #1 does not control orientation of …

May 4, 2020 · In the perpendicularity case, the two tolerance zones have to be perpendicular to the datum center plane A. And that's all. In the position case, the two tolerance zones have to …

Mar 8, 2012 · Can anyone please clarify if a perpendicularity call out is controlled by a basic dimension or not? In other words is the tolerance zone centered on a basic dimension?

Aug 13, 2009 · Perpendicularity is an angularity control but this one is set at 90 degrees. It is not strictly angularity though. Perpendicularity on a flat surface also includes flatness.

Sep 19, 2019 · The perpendicularity of the threaded holes is more for looks than function. The assembly is a custom vacuum application for a customer where feedthroughs (plugs) are …