i have a printt with a note that tells me "All untoleranced basically located surfaces must be..." with a surface profile tolerance of 3mm. The only untoleranced basic dimensions are distance dimensions. How specifically are these to be measured / reported in PC DMIS? So if I have a callout from one side of the part to the other for 2000mm, how do I dimension that? Do I do a distance dimension and set the tolerance to +/- 1.5mm? Do I take (2) points and report using profile? Little lost here. Any help at all with this would be greatly appreciated.
Reporting Profile Tolerances on "Basically Located Surfaces"
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Originally posted by Matthew D. Hoedeman View Postyou got a note on the print somewhere that says:
"ALL CAD DATA IS BASIC"
If so, then unless something is specifically called out, then all the un-called-out surfaces are prof/3
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Originally posted by vizionary357 View PostHere's an example of what I mean. The circled dimension is a distance call out. Do I dimension it as such and split the tolerance (+/- 1.5mm) or is there a way to dimension it as a surface profile as the note specifies.Last edited by marcc; 07-17-2019, 01:49 PM.
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Originally posted by marcc View Post
I don't think your circled dimension has anything to do with profile, it is one of the basic dimensions for hole location. It is not surface basically located from the hole but hole from the datum B.
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That basic dimension is for the position of that hole. I am curious what "B" is. One of those imaginary lines? or is actually related to something?Last edited by KIRBSTER269; 07-17-2019, 02:14 PM.(In Memory of my Loving wife, "Ronda" who I lost March 7, 2016. I love you baby.)They say "Nobody's Perfect." I must be Nobody.
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Technically, What your note is saying is, Maybe you take any old random hit, maybe where I placed those arrows. That surface doesn't have a callout where I pointed, but that surface has to lie within that Tolerance zone stated in your notes
image_17156[1].jpg(In Memory of my Loving wife, "Ronda" who I lost March 7, 2016. I love you baby.)They say "Nobody's Perfect." I must be Nobody.
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Originally posted by KIRBSTER269 View PostThat basic dimension is for the position of that hole. I am curious what "B" is. One of those imaginary lines? or is actually related to something?
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BASIC DIMENSIONS show you the cad-perfect part. They have no tolerance. That basic dimension would NOT get that 'tolerance' even then, as EACH END would get that tolerance, and IF basic dimensions got tolerances (which they DON'T), it would be double since each end gets the full tolerance.sigpic
Originally posted by AndersII've got one from September 2006 (bug ticket) which has finally been fixed in 2013.
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I have a customer that regularly indicates on their prints: "Unless otherwise specified, all tolerances are as shown".
This is on sheet 1 of 1. No hidden title blocks, no Note section.
And then there's no tolerance given on the print. Anywhere.
How do you justifiably tell someone that their part is out of tolerance with a print like that?
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Originally posted by Quality ish View PostI have a customer that regularly indicates on their prints: "Unless otherwise specified, all tolerances are as shown".
This is on sheet 1 of 1. No hidden title blocks, no Note section.
And then there's no tolerance given on the print. Anywhere.
How do you justifiably tell someone that their part is out of tolerance with a print like that?Last edited by marcc; 07-18-2019, 08:10 AM.
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