I noticed that when you measure a feature with a specific alignment and ask for the location and then the TP, the results are different; for example, I ask for the location of a cylinder is X, the result is 9.945, If I ask for the TP the X is 9.949. Can anyone explain this?
Lets say I have a 1X1X1 cube with a hole through the center. Top is Z (-A-), face towards me is Y- (-B-), face towards left is X- (not a datum).
Now, lets assume that the print actually calls out the right face as a rotational datum (would be -C-). But oh dang it, you're aligned to the left face, not the datum!
Reporting the POSITION of the hole PER YOUR CURRENT alignment is yielding you the 9.945 result. If you went into XACT measure and build the Feature Control Frame and selected the datums just as the print shows you..the software will build that alignment in the background and will report the results per that (why you're seeing 9.949).
Lets say I have a 1X1X1 cube with a hole through the center. Top is Z (-A-), face towards me is Y- (-B-), face towards left is X- (not a datum).
Now, lets assume that the print actually calls out the right face as a rotational datum (would be -C-). But oh dang it, you're aligned to the left face, not the datum!
Reporting the POSITION of the hole PER YOUR CURRENT alignment is yielding you the 9.945 result. If you went into XACT measure and build the Feature Control Frame and selected the datums just as the print shows you..the software will build that alignment in the background and will report the results per that (why you're seeing 9.949).
