Kind of embarrassing but I can find and good info on this, we usually do parts here that don't have this requirements. The print as it shows 2 coaxial holes, but don't have tolerance for the coaxiality. It has TP .001, as you can see in the attachment. Does it mean that holes should be coaxial within .001? or it just states the fact that this holes are on the same center?
How do you read this?
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It shows the datums each being made up by the two coaxial holes. each datum is therefore a 3D feature used together as a datum for the profile. Something tells me that they would be in conflict with each other the way they are shown,
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What 212 said, but if you run V4.2 (sorry...) you can evaluate this using XactMeasure GD&T.
That specific call you could not do in V4.0 (impossible) and V4.1 (had a major bug in it). I have exactly the same calls (except the coaxial hole note) and V4.2 finally allows me to analyze this as is.
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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