From: Ismo Mäkelä (ismo.makela@deskartes.fi)
Date: Wed Nov 19 2003 - 10:37:11 EET
Hi,
DeskArtes 3Data Expert can also be used to automatically generate
watertight STL models from Rhino models. The model can be transferred
to3Data Expert through an IGES file and the results you get are great.
Best regards,
Ismo
Jonathan Chertok wrote:
> Grant,
>
> My relatively limited experience has been that Rhino can be a little
> tricky, especially if you are used to solids modelling. The Rhino
> Newsgroup is a great source, however, and I would encourage you to
> post files for specific problems. If you don't want to post, I believe
> their tech people would be willing to review a file sent specifically
> to them.
>
> You can use surfaces from Rhino in RP. They "must" be closed volumes.
>
> For this you will generally want use the "join" command. Also, there
> is a "check bad objects" command that you may want to use. You will be
> amazed at how many "bad object" Rhino can generate. Though I never
> figured out what exactly a "bad object" is, I believe it will give you
> trouble when trying to export to stl (if you are going to stl).
>
> That said, Rhino is also somewhat loose in exporting stl files from
> what I understand. One way to check this would be to bring the file
> into Form Zed which is very strict about exporting stl file. If it
> don't go out in Zed, but does go out as stl in Rhino you will
> *probably* have a downstream problem.
>
> Listers with more experience on this end have told me that they can
> freak out clients who want to know why their file will not import into
> RP by asking, "you used rhino, didn't you?" It is this looseness with
> respect to RP in Rhino that is at issue. My understanding is that
> rhino wishes to improve this and their mesh commands in general.
>
> Best advice I got is in the Rhino List Archives somewhere. I was told
> to create a mesh in Rhino (in the NURBS based 3ds file), prior to
> exporting, so that you could see the mesh before shooting it out.
>
> The issues with the NURBS to mesh command itself is also on the
> Archives and it is way too involved to get into here.
>
> Rhino Booleans are a bitch. I expect you should not have problems with
> offsetting in Rhino as long as it is relatively straightforward. If
> you have something very complicated, try and find a friend with
> Materialise Magics who will do it for you and send it back. Magics is
> magic.
>
> Feel free to shoot me an email if you want to get more detail.
>
> - Jonathan
>
> P.S. Rhino surfaces are a lot like ACAD 2D drawings it I reflect on it
> a bit.
> Rhino is trim and stitch. ACAD is trim and extend...
>
>
>
>
>
> Universal Joint: Buildings + Digital Design
>
> Jonathan Chertok. Principal
> Austin, Texas [512] 407 9628
>
> Full Service Design and Construction
>
>
>
>
>
> Universal Joint: Buildings + Digital Design
>
> Jonathan Chertok. Principal
> Austin, Texas [512] 407 9628
>
> Full Service Design and Construction
>
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-- ************************************************* Ismo Mäkelä Managing Director Makela@deskartes.fi DeskArtes Oy www.deskartes.com Pihlajatie 28 tel. +358-9-644 335 FIN-00270 HELSINKI fax. +358-9-644 330 *************************************************
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