Rhino to W2

[Geneg]

I have a problem getting info to W2 from Rhino using STEP export.


Some if the curves and surf are missing during STEP conversion


I wonder if anybody can advise of proper procedure to do export.


What choices have to be accepted in Rhino?


Thanks in advance.
Edited by: Geneg

 

[Geneg]

Any body?

 

[Moroso]

Rhino is the worst translator to bring into Pro/E


Whenever I get a Rhino file I have to reknit everything to get the model to solidify.


I have never had a good surface file from Rhino.

 

[jeff4136]

Moroso:
With the exception of a few specifics, I don't think that
Rhino is technically inferior to other programs. It's low
cost and 'advanced', relative low end mechanical solid
modelers, capabilities does result in more than the average
number of poor quality models that don't translate well.
-- Give or Take --


Gene:
Are these your models or third party? With the exception of
the obvious; accuracy, the subject is too broad to address
in general and there's been a lot written on the subject if
you'll search for it. If you have a v3 readable 3dm to
examine I'll be happy to take a gander and see if anything
jumps out. Posting it to McNeel's forum will give it a lot
more valuable exposure.

 

[Moroso]

Jeff4136,


Absolutely no disrespect to Rhino, I own Rhino myself but the files come in pretty shabby from our customers.

 

[Geneg]

ID guys in our company are using Rhino and because engineering can not duplicate surf that they build, we have to use files exported from Rhino.<?:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" />


Sometimes STEP files come with curves missing of closed quilts (I assume) as solids. I downloaded Rhino trial version to see what the choices are for STEP, but did not have time to do it.


I just wonder if there any recommendations for Rhino users to export a better file.





Thanks


,

 

[jeff4136]

> come in pretty shabby from our customers.


Yes, that does happen. `;^)


- - - - - - - - - - - -


> to see what the choices are for STEP


To the best of my knowledge; there are no STEP export options that
will make a bit of difference in the geometry (that's the beauty of
STEP vs. IGES; not a bunch of options to miscommunicate). Different
APs (203 & 214) and CCs affect the handling of 'meta data' attributes.
Probably the only difference you might see, out of Rhino, is color
retention. Ref:
[url]http://news2.mcneel.com/scripts/dnewsweb.exe?utag=&group =rhino&xrelated=244485&cmd_related=View+thread [/url]
but ask there or look around enough to satisfy yourself.


> Sometimes STEP files come with curves missing of
> closed quilts (I assume) as solids.


I'm sorry. I don't understand what you are saying but let's just say
your imports aren't coming in acceptably. I feel that, in most cases,
your problems will be resolved by what happens before the model is
exported; e.g. clean up or somehow change the model geometry.


> ID guys in our company are using Rhino and
> because engineering can not duplicate surf


It would be interesting to see what sort of geometry you're working with
that can't be recreated in Pro/E.


The offer still stands if you have something you can post. I think it's
probably something that will have to be resolved on a case by case
basis. Otherwise I'd suggest that you urge the Rhino operators to do
their best to educate themselves and dig into the finer points of
modeling for export to other programs. If they are modeling using
Rhino's default tolerances and Save(ing) As STEP instead of exporting
selected geometry they have a ways to go.



There may be a few things you can do on the import end to improve the
import. It's trial and error, search thru config opts or search archives
what's been written. You might also post to Rhino forum and see if anyone
there has a favorite config set for importing from Rhino. What little I've
done hasn't shown any identifiable trends. What seems to help sometimes
seems to hinder other times.