I would say that the tolerance in terms of the axis is never equivalent to the tolerance in terms of the surface, simply because the definitions are completely different. In such cases, the surface interpretation shall take precedence. In certain cases of extreme form deviation (within limits of size) or orientation deviation of the hole, the tolerance in terms of the axis may not be exactly equivalent to the tolerance in terms of the surface. RE: Y14.5.1 Public Review Draft 3DDave (Aerospace) 30 Jan 19 15:09
Y14.5-2009 contains an axis interpretation for position tolerances at MMC - why is this considered an incorrect interpretation? See the response to 3DDave's question above. I don't know what comments have been received so far - I will see the list after the comment period is over.ĥ. Issuing of electronic versions versus hard copy versions is an ASME decision - I don't have information on this.Ĥ. For comparison, the recently relesed Y14.5-2018 had one public review cycle.ģ. Additional public review drafts would depend on what revisions need to be performed after the first one. This is the first public review draft of Y14.5.1-20XX.Ģ. A large part of the scope of Y14.5.1 is to enable calculation of actual values from these definitions.ġ. But I can say that the tolerance zone, boundary, and DRF definitions in Y14.5-2009 are followed as much as possible. You're right, I'm not at liberty to discuss details. RE: Y14.5.1 Public Review Draft pmarc (Mechanical) 29 Jan 19 20:14
It's too bad that discussion notes have never been published to allow everyone else to understand what was intended. It was on display in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying ‘Beware of the Leopard."ĭouglas Adams, Hitchhiker's Guide to the Galaxy.Įvan - does it support my interpretation of the real virtual condition represented in '2009 figure 4-16(c) and not the blind adding of numbers depicted? I guess you cannot tell anything about anything involved with the development. “But look, you found the notice, didn’t you?” “Ah, well, the lights had probably gone.” “On display? I eventually had to go down to the cellar to find them.” This forum is clearly known to many members of the ASME committees and there have been no communications prior to this.
That's a full 2.7 days of checking, break it into 8 hour sections and that's more than a solid full-time week to that one task. To maximize the chances, that's once a week, 52 * 25 * 3 minutes to scroll through all the possible release notes.
I would have checked that over how much time in the last 25 years on the off chance that there was an update?