management had me run a test. I taped a 2,4,6 block to the table. took the top plane, x+ and y- and created my alignment. I then called them datum a top b x and c y. I measured 2 holes on each side and did a position in geotol. I used the same measured data in legacy and got a .010 difference. How can this be?
What management is saying is the position formula. 2 x (dx^2 + dy^2)^1/2 when you figure it manually using the measured values matches legacy perfectly but it is not matching in GEOTOL.
I understand this is rough and dirty test but I can not explain why parts we measure good with second methods and legacy are good. GEOTOL (which our customer uses and requires) is failing the part. I have asked Hexagon this question and keep being told that GEOTOL is correct to the standard. Which is great but the standard use the 2 x (dx^2 + dy^2)^1/2 formula and is passing this but failing in GEOTOL.
I am not bashing PCD Hexagon or anything but I can not explain it to management.
Can you send me the routine that you are questioning - the one that has the measured data and the comparison between legacy and the geometric tolerance command?
You can use this link to upload it to our secure file share site:
https://sendit.hexagon.com/filedrop/~5diqk0
There are many, many reasons why you may not be able to get the numbers to match but once I have the routine, I will be able to explain what is going on.
I received your program but none of the features have measured data (everything is nominal) so it is not much use for investigative / comparison purposes. Is it possible for you to execute it on an actual part, save a copy and then send that to me?
I received your program but none of the features have measured data (everything is nominal) so it is not much use for investigative / comparison purposes. Is it possible for you to execute it on an actual part, save a copy and then send that to me?