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datum shift

What is the "datum Shift" that shows up on the CMM report?
Can we get the report to NOT show these figures?
What are these figures?
Parents
  • Be careful what you wish for. Removing the Datum shift from the report sucks. I like many, did not understand what it was telling me for a long time. Once I figured it out, it became a valuable tool for troubleshooting programs. Now that they have taken it away, I am screaming to have it brought back. Just last week we were having issues with the results of a part and it wasn't making any sense as to why. The part was fine but PC-DMIS was telling me it was not. Finally, i saved the program with the measured data as a 2020 R1 version and opened it in that version. Of course I had to recreate the GD&T callout but as soon as I did, the datum shift showed me that the rotation was being fixed when it shouldn't have been. I still don't know why it was fixed but i ended up deleting the feature and recreated it. After that, the datum shift was correct, the results were correct and everything was fine. I assume the feature was somehow corrupted by the many software updates we have done over the years. I would have never figured this out without seeing the datum shift results and what PC-DMIS was doing to me. The Datum shift results is something that needs to come back.
Reply
  • Be careful what you wish for. Removing the Datum shift from the report sucks. I like many, did not understand what it was telling me for a long time. Once I figured it out, it became a valuable tool for troubleshooting programs. Now that they have taken it away, I am screaming to have it brought back. Just last week we were having issues with the results of a part and it wasn't making any sense as to why. The part was fine but PC-DMIS was telling me it was not. Finally, i saved the program with the measured data as a 2020 R1 version and opened it in that version. Of course I had to recreate the GD&T callout but as soon as I did, the datum shift showed me that the rotation was being fixed when it shouldn't have been. I still don't know why it was fixed but i ended up deleting the feature and recreated it. After that, the datum shift was correct, the results were correct and everything was fine. I assume the feature was somehow corrupted by the many software updates we have done over the years. I would have never figured this out without seeing the datum shift results and what PC-DMIS was doing to me. The Datum shift results is something that needs to come back.
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