Reference pattern

[kwsauter]

I'm having a recurring problem with reference patterns. I'm sure I'm
not the first person to deal with this. I have created a part with 7
patterns of a cut 1.125" apart (linear). Sometimes I can create a
reference pattern with another cut, and all 6 repeats of the pattern
show up in the right place. However, lately Proe says it created the
reference pattern but doesn't create it. It shows me the black dots
right where they're supposed to be, but when I say OK, if it creates the
cuts, it puts them all on top of the first cut. Same thing happens in
an assembly with components. They all end up on top of each other, even
though Pro shows me the black dots in the right places.

Does anyone know how to deal with this?

Ken Sauter
DRS Reconnaissance Surveillance and Target Acquisition
Infrared Technologies Division
PO Box 740188
Dallas, TX 75374
214-860-6826
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[wattsteam]

Reference patternI've had the same problem many times and have not found a solution, only a workaround. You can make some offset datums and hang the cuts on them, and then group the new datums and cuts in a local group. You can then pattern the local group. It does add some feature overhead to the model, but I'd rather have overhead than not be able to finish a model.

Hope it works for you.

Best regards Jeff Dayman

[ocorten-2]

Hi Ken,



The problem with reference patterns is that ProE has difficulty with the
reference pattern if the feature or component you wish to reference
pattern has references to multiple other patterns.

ProE expects just one patterned reference but if there are more ProE
places all the instances of the reference pattern on top of each other.



For instance, you placed a component with insert in a patterned hole and
a mate to the top surface, but you oriented it to a datum plane which
also happens to be patterned.

If you then wish to reference pattern the component ProE does not know
which pattern to choose as a reference and consequently places all
instances on top of each other.



I've mentioned this to PTC on several occasions. We need control over
the references you wish to use as a reference pattern.

Ideally would be that we can just choose any pattern to use as a
reference instead of one of the references of the first feature or
component.



It's great that since WF4 we can also disable instances of reference
patterns, but the ability to choose or change the reference pattern to
follow, regardless of the references of the first feature or component,
is the one thing that would make it complete.



So send in those enhancements requests and probably one day we will see
such an option.









Olaf Corten

CAD/PLM Manager, Besi Competence Center - Other Business Applications

Fico BV, Ratio 6, 6921 RW Duiven, The Netherlands

Tel.: +31 26 3196215