Calypso Settings

[[FL...]]

I was wondering what these settings should be, none of our machines are the same.  What will this affect?

We are running 2023 and 2024 Calypso

[[Ma...]]

It depends on what norms you are running - for ISO - it's LSQ ( gauss ) and unchecked ISO 5459.
For ASME - i believe it's Outer tangential teature and checked ISO 5459.

I believe you know difference between LSQ and Outer tangential.

ISO 5459 will use exact 90° and not real intersection.

For MMC - one is allowing you to grow your tolerance ignoring feature dimension out of spec - other will set you ZERO bonus for feature out of spec.

I hope someone will correct me if i am wrong.

[[To...]]

I believe when set as "mechanical gage", it still adds bonus to the tolerance.  My interpretation is that you're looking for correlation with a production floor measurement.  For example, in some high quantity production environments, an operator has 2 sets of gages.  One, is a functional fit position gage and the other is a set of go / no-go gages for hole size.  If the holes are oversize, the functional gage passes, but will fail when the sizes are checked.  When Calypso is set to mechanical gage, the report will match what happens on the floor. This is just my own interpretation for having this option.  I think for most users, it would be best to set to "Restrict to dimensional tolerance".

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 To comply with ASME, the evaluation for new datum features should also be set to Outer Tangential Element.  If you are using the BETA GDT option, the software automatically applies these evaluations. 

Edited August 27

[[na...]]

And don't forget to restart Calypso or re-initialize CMM connection to apply MMC/LMC calculation mode.