Dear all,
There's a company named 'Armonicos' who is deeply involved in the
development of Direct translators that is really a great help for us.
I think you can reach helfpul information at their web site of
http://www.armonicos.com.
Hope this informationcan be a help for you.
Masuo Namme
>Actually, not all translators are created equal. Since each translator
>is written independently by each CAD company, to the STL file format
>specification developed by 3D, they can vary greatly in how they choose
>to output it. These differences can range from too many triangles to
>mismatched or missing triangles. How the accuracy of the file is
>controlled can vary greatly also. One translator may use a chordal
>tolerance value and an angle control value (Pro E), another may use a
>non descript accuracy value that doesn't really relate to any real
>feature on the part, while another may not give you any control at all.
>For example, a good translator would define a cube with 12 triangles.
>Another may completely cover the part with tiny triangles and create a
>large file. Hope this helps, Todd Stahlhut
> ----------
>From: adatt@iitk.ernet.in
>To: corcor@ibm.net
>Cc: rp-ml@bart.lpt.fi
>Subject: Re: CATIA-to-STL (was: IGES to STL)
>Date: Wednesday, March 18, 1998 4:40AM
>
>I am unable to understand the line: "file was always small". As per my
>understanding, the file size depends on the triangulation parameters, so
>it is independent of the translator used. Pl. correct me if I am wrong.
>
>Regards.
>A. D. Bhatt
>
>>
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>>
>> Hello people,
>>
>> I have extensive experience with STL generation from CATIA. When ever I
>> received an STL file from CATIA the file was always small and easy to
>> process. Most of the files we generate from CATIA can be emailed. I
think
>> you will find that the resolution chosen for your parts is way to high to
be
>> producing such large files. Try a SAG value of 0.03 and "MAX size of
>> Triangles" of 200 (this will depend on the part). Solids and volumes
>convert
>> extremely well. To convert a surface model it would be better to join
>all the
>> faces together into a skin first. This eliminates the problems of
reversed
>> normals and gaps.
>>
>> I hope this can help?
>>
>> Daniel Corcoran
>>
>> DAN DAVIS, RAPID PROTOTYPE wrote:
>>
>> > Brandon, Victor and all:
>> >
>> > I do have the v4.1.7 CATIA translator, but find that it creates really,
>> > really large STL files (i.e., a quarter scale, 10-spoke cast aluminum
>> > car wheel was over 7Mb). Do you find this also?
>> >
>> > I've heard that this was a problem at Chrysler in the past and they
>> > switched to the Brockware translator. I was wondering if this is still
>> > the case or is it that my engineers do not know what settings to use
for
>> > the translation?
>> >
>> > Please keep in mind that I am not really a CAD expert -- I know just
>> > enough to get into trouble.......
>> >
>> > Regards,
>> > > Dan Davis
>> > > Division Head, RP&M
>> > > Perusahaan Otomobil Nasional Berhad (PROTON)
>> > Hicom Industrial Estate
>> > Batu 3 PO Box 7100
>> > Shah Alam, Selangor D. E.
>> > 40918 MALAYSIA
>> > > +60 3 515-3906 direct line
>> > > +60 3 515-2380 direct fax
>> > > +60 12 277-5770 hand phone
>> > >
>> > >
>> > >
>> > >
>> > > ----------
>> > > From: Brandon Jacobsen[SMTP:brandonj@eagledesign.com]
>> > > Sent: Monday, 16 March, 1998 19:32
>> > > To: DAN DAVIS, RAPID PROTOTYPE
>> > > Subject: Re: IGES to STL
>> > >
>> > > Dan,
>> > >
>> > > I am not familiar with brockware's CATIA to STL translator, but we
>> > > have done extensive work with the CATIA STL package
>> > > available in v4r1.7 and up. It is a little costly but it is an
>> > > excellent stl translator. The major advantage of the CATIA
>> > > translator is that you are 99.99% guaranteed a good STL file if you
>> > > have a Volume or solid. And an offset function that takes
>> > > a single stl of a skin and gives it thickness, which is great for
>> > > rapid tooling. If you have any questions please feel free
>> > > to call.
>> > >
>> > > Brandon R. Jacobsen
>> > > Eagle Design & Technology, Inc.
>> > > phone: (616) 748-1022
>> > > fax: (616) 748-1032
>> > >
>> > > "If one synchronized swimmer drowns, do the rest have to drown too?"
>> > >
>> > >
>> >
>>
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>>
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>> fn: Daniel Corcoran
>> n: Corcoran;Daniel
>> org: Concentric Asia Pacific
>> email;internet: corcor@ibm.net
>> title: Industry Specialist
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>>
>> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>
>
>
>For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>
>For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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