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.
Please post your code, including the results. I'd assume, initially, that your alignment doesn't match the coordinate system established by the datum reference frame.
So let me try and give you what I see. the numbers are made up but give you an idea.
Top plane is zero or datum a. drop down to the first hole at .050. measures .0001 dev.
front plane or datum b to the hole is .050 measures .0002 dev
position of .0004
legacy calls it .0004
GEOTOL calls it .0012
So let me try and give you what I see. the numbers are made up but give you an idea.
Top plane is zero or datum a. drop down to the first hole at .050. measures .0001 dev.
front plane or datum b to the hole is .050 measures .0002 dev
position of .0004
legacy calls it .0004
GEOTOL calls it .0012