MikeD6
Member
Last Activity: 11-26-2019, 10:39 AM
Joined: 06-04-2019
Location:
-
What is datum A?... -
I know some customers require a Gage R&R study on critical dimensions to verify repeatability and reproducibility of the measurement system used....Leave a comment:
-
I still think using 2 dials and cancelling out error from the datum feature on the controlled feature will cause you to accept bad parts.. What you are...Leave a comment:
-
LouisD I get that, but I'm talking about measurement accuracy, not a crash. If you pick a prehit distance that is far enough to not risk a crash, your...Leave a comment:
-
Datum A in this case would be the theoretically perfect cylinder that contains all of the elements of the cylinder that is being defined as datum A. ...Leave a comment:
-
Right from the standard......Leave a comment:
-
No, it has nothing to do with accuracy either. Prehit is how far away from the hit point the tip starts from. For example, if you were just measuring...Leave a comment:
-
AnderSL, you are right. I'm looking at the ASME book right now....Leave a comment:
-
andrea_ABAZIA,
I agree with Ninja, use 0.4 mm/s touch speed in both programs for simplicity. I believe that Hexagon suggests a slow touch speed...Leave a comment:
-
Like this:
STARTUP =ALIGNMENT/START,RECALL:USE_PART_SETUP,LIST=YES
ALIGNMENT/END
MODE/MANUAL
...Leave a comment:
-
Then it will work fine. A few mm difference won't make a difference. Post some code if you want to try it and I'll help you out.Leave a comment:
-
Is your part always in the same place in relation to your table edges?Leave a comment:
-
Yes, you will have to run the manual alignment once to roughly teach the CMM where the part is. But once you've done that, you never have to do it again...Leave a comment:
-
I would use an external manual alignment if you have consistent fixturing. Create a separate program where you measure you're alignment features manually....Leave a comment:
-
No louisd, it doesn't confuse the two sides, thank goodness. I just replace the M_ with an S_ for my slave side....Leave a comment:
-
Excellent, thanks for that idea! It does tend to happen with my oldest program so what you're saying makes sense. I've updated it many times....Leave a comment:
No activity results to display
Leave a comment: