I have a couple of different profile call outs on my B/P. On the same print there is a profile of a surface .010 to BAC then on an other surface .010 BCA. I have not started programing it yet and I just wonder if dmis calculate the profile any different if I just dimensioned as .010 ABC for both cases. Should I stick with the B/P or I can use .010 to ABC?
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I would say stick to the print. Is there a basic dimension from the surface to the B datum? You B is primary so I'm thinking that they're more concerned about the distance betwen the surface and B datum than the A.sigpic
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The datum schemes also define which features level and align - changing those can really change the meaning of the measurements.
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The part is a hinge by definition, datum -A- is a flat surface, B and C are close tolerance holes. I guess those holes are the once that they want to check the part to, because of the functionality of the hinge. Thank you for the reply. Learning something new everyday.Pc-Dmis 4.2, Zeiss Eclipse
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Originally posted by BANDY View PostThe part is a hinge by definition, datum -A- is a flat surface, B and C are close tolerance holes. I guess those holes are the once that they want to check the part to, because of the functionality of the hinge. Thank you for the reply. Learning something new everyday.sigpicSummer Time. Gotta Love it!
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Originally posted by BANDY View PostI have a couple of different profile call outs on my B/P. On the same print there is a profile of a surface .010 to BAC then on an other surface .010 BCA. I have not started programing it yet and I just wonder if dmis calculate the profile any different if I just dimensioned as .010 ABC for both cases. Should I stick with the B/P or I can use .010 to ABC?
HOWEVER, in my humble opinion, PC-DMIS incorrectly reports profile, so be VERY careful.
Hexagon is unwilling to correct this issue because in their opinion they do it right. I totally disagree and before you report any results, make sure you study the attached post from some time ago. On top of that, you are using 4.0. There are several reporting issues with profile in 4.0 that have now been resolved in 4.2.
STOP USING 4.0!!!!!! It is not very good.
http://www.pcdmisforum.com/showthrea...hlight=profile
Jan.***************************
PC-DMIS/NC 2010MR3; 15 December 2010; running on 18 machine tools.
Romer Infinite; PC-DMIS 2010 MR3; 15 December 2010.
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I am currently using 4.1, I am getting 4.2 next week. I noticed that some cases when I see a profile out of tolerance, I do analyze each point location and they are all within tolerance. Is that what you mean by dmis calculating profile wrong?Pc-Dmis 4.2, Zeiss Eclipse
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Originally posted by Paul Sarrach View PostAll I ever use as to report a profile is the "T Value" of points. We are Sheet Metal. I make a note on the report for each call out and show the axis or axis's and the T Value
I have been doing that since the DOS days of Pcdmis.sigpic
Originally posted by AndersII've got one from September 2006 (bug ticket) which has finally been fixed in 2013.
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Originally posted by Matthew D. Hoedeman View PostWorks great, don't it, Paul?
I have been doing that since the DOS days of Pcdmis.sigpicSummer Time. Gotta Love it!
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