DMIS Question

[[Aa...]]

Hopefully those of you with DMIS experience can help me here.

If you're setting up a PC-DMIS program and the print has a DRF that doesn't constrain all degrees of freedom, does this require any special treatment? Does DMIS have built-in methods for optimizing the results in the unconstrained degrees of freedom?

[[Me...]]

I have a DMIS question as well....

Is there a way to replicate the "Same as deviation line" special alignment in Calypso for DMIS? I have a drawing attached that shows my Datum C tertiary alignment at a 40° angle. I achieve that alignment by intersecting -C- with -B- and getting the X & Y coordinates of that intersection FYI.

Calypso makes this alignment very easy. I only have 2 years experience with DMIS and have no clue how to replicate that except to do the same intersection line and rotate to the given angle.

Capture.PNG

[[Aa...]]

Man, those crickets are loud...

[[se...]]

Maybe this'll quiet the crickets, Aaron. 😎
In the image below, the FCF callout is to A|B.... A is the upper plane of the part and B is the midplane of the slot.
As you can see in report snip, the cylinder/bore is measured as being OOT in X by .0001 using legacy dimensioning. However, using XactMeasure GD&T module, in the FCF, only 5 DoF are constrained, allowing for a 'shift' in X, thereby making the feature acceptable. (not a good design for a high rpm medical application, but the real part is not called out this way)
I do like the way PC-DMIS gives you a visual in the report (fixed or shift) so one can see which DoF's are still unconstrained. Hope this is what you were asking with 'optimizing the results'. It pretty much just does what it's told.
'XactMeasure' was pretty squirrely, and required babysitting upon initial release, but has become relatively solid over the past several years.

fcf_DoF.PNG

[[Aa...]]

The demi-guru speaks! Thanks for the response.
So then, is XactMeasure something that's available to anyone with DMIS that's not more than a couple years old, or is it something that's purchased separately, or ?

[[He...]]

Exact measure is included with PC-DMIS, I think it has been around for 10+ years?

[[Aa...]]

And does it work with profiles, as well, or just positions, as in Sea Level's example?

[[He...]]

I think you can use it for any dimension. You just pick the feature and build the feature control frame per your print. I don't have a lot of experience with it, it doesn't work with our data importer.