i was measuring an oring groove that by calipers measured 0.645 the arm measured a plane to plane measurment of 0.234 i measured a plane at the top of the groove and a plane at the bottom of the groove and measured the distance between the two in 3d and that is number i got however all other dimensions i took using the same set up and alignment came out correct .
Will centroid of one plane to another plane give you the real min or max distance between planes?
No. It gives you distance between the average center of the planes, in the manner described in my previous post. If you want to know the max/min, simply use F10 and add that column to your report. It's important to know that's not the true max/min, it's the max/min for all the hits you took. Possibly there is some uninspected portion of the surface that contains the real world min/max that we weren't lucky enough to hit.
And upon achieving said distance the following ways above, can you fit that distance between the actual minimum parallel condition of both planes.
You're starting to lose me here, but I'll hazard a guess. I would say the minimum parallel condition would be given by the drawing/CAD. So using a Distance Dimension would pass/fail the part based on the centroids' relationship (again, subject to the manner described in my previous post), but the max/min would show us how the entire surface is performing relative to the required dimension, not just the centroid.
Cliff's Notes: That's happening already. Activate F10 and keep in mind that you haven't truly inspected the whole surface.
f not, is there more information needed? In dealing with my engineers they have been far more interested to know the actual distances at multiple points vs. that of an average mating condition. Just saying. I guess it depends on what you are looking for and sometimes to much information can be a bad thing. They will pick the way that makes them happy. Remember, it will more than likely come down to a judgement call and get shipped anyway.
Engineers are notorious for asking for information that doesn't necessarily relate to form/function, usually "just because they want to know". In my mind, that is typically indicating that they've realized a shortcoming on their drawing. Maybe they currently have a Distance Dimension and have realized that they actually need a Surface Profile, to ensure that every point on the surface is within a tolerance band. Note that we have excellent ways in PCDMIS of using graphical analysis to find the information that they are interested in knowing.
Cliff's Notes: Try scanning and Profiling that surface. Maybe that'll satisfy their max/min concerns.
Will centroid of one plane to another plane give you the real min or max distance between planes?
No. It gives you distance between the average center of the planes, in the manner described in my previous post. If you want to know the max/min, simply use F10 and add that column to your report. It's important to know that's not the true max/min, it's the max/min for all the hits you took. Possibly there is some uninspected portion of the surface that contains the real world min/max that we weren't lucky enough to hit.
And upon achieving said distance the following ways above, can you fit that distance between the actual minimum parallel condition of both planes.
You're starting to lose me here, but I'll hazard a guess. I would say the minimum parallel condition would be given by the drawing/CAD. So using a Distance Dimension would pass/fail the part based on the centroids' relationship (again, subject to the manner described in my previous post), but the max/min would show us how the entire surface is performing relative to the required dimension, not just the centroid.
Cliff's Notes: That's happening already. Activate F10 and keep in mind that you haven't truly inspected the whole surface.
f not, is there more information needed? In dealing with my engineers they have been far more interested to know the actual distances at multiple points vs. that of an average mating condition. Just saying. I guess it depends on what you are looking for and sometimes to much information can be a bad thing. They will pick the way that makes them happy. Remember, it will more than likely come down to a judgement call and get shipped anyway.
Engineers are notorious for asking for information that doesn't necessarily relate to form/function, usually "just because they want to know". In my mind, that is typically indicating that they've realized a shortcoming on their drawing. Maybe they currently have a Distance Dimension and have realized that they actually need a Surface Profile, to ensure that every point on the surface is within a tolerance band. Note that we have excellent ways in PCDMIS of using graphical analysis to find the information that they are interested in knowing.
Cliff's Notes: Try scanning and Profiling that surface. Maybe that'll satisfy their max/min concerns.
