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.

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

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?

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 …

Jul 16, 2010 · 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 …

Aug 13, 2023 · Hi everyone, I am drafting a drawing of a toggle lever with a threaded hole for an insert. I set a control frame to control the perpendicularity of the hole with respect to datum A. …

Jun 16, 2011 · We have a few parts here that have what I feel is a questionable callout of perpendicularity of a surface with respect to a thread. The thread is normally called out as the …

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 …

Mar 7, 2025 · perpendicularity: the condition of a line element, surface, tangent plane, feature’s center plane, or feature’s axis at an implied or specified basic 90° perpendicular) angle relative …

Jul 26, 2024 · Can perpendicularity tolerances stack-up? See the attached picture for an illustration. I could not find the answer on this site or elsewhere. I am a GD&T noob so I …