Jon,
I suggest that you view stl files in a viewer program such as Solid View,
taking ample cross-sections to understand the part and to measure its fine
details. If you see facets on curved surfaces you need to obtain a larger
and therefore more accurate file. Then you must know the properties of the
materials of construction of the RP processes available to you and their
accuracy, resolution (radius of intersections) and surface finish
capabilities. Then you can make judgments as to suitability for your need.
Best Regards, Tom Richards, Metallurgist
----- Original Message -----
From: "Jonathan Chertok" <chertok22@hotmail.com>
To: <rp-ml@bart.lpt.fi>
Sent: Wednesday, April 18, 2001 12:34 PM
Subject: RE: a concise description of a buildable RP file
> List,
>
> I find Charles often has interesting information/questions for the list
and
> would like to follow up on his (and Vern's) posting.
>
> Can anyone add information helpful to the "general public" about how to
view
> and look at an RP file? I have a series of rather complicated shapes, many
> of which are buildable in RP and a couple of which I have found that there
> may be some "difficulty" with building. This is perhaps due to the fact
that
> some are not straightforward masses or surfaces, but rather more intricate
> shapes with points of contact etc.
>
> Is there a viewer that the list finds helpful for non-technical RP people
to
> use to see what the machine sees, or is it just practical experience with
> these machines which gives the expertise? Is two mm. an appropriate point
of
> contact, or I suppose this depends on the volume of the object that is
being
> supported and by how many points of suppost it has.
>
> I understand the normal, watertight, bad triangle, duplicates etc - but
what
> are the professional recommendations giving the go ahead on a particular
> file - is it simply to send them off and have someone look at them?
>
> Thanks,
>
> Jonathan chertok
>
>
> ----Original Message Follows----
> From: "Vern Carter" <vern@3dresource.com>
> To: <cwho@lgmmodel.com>
> CC: <rp-ml@bart.lpt.fi>
> Subject: RE: a concise description of a buildable RP file
> Date: Wed, 18 Apr 2001 10:56:38 -0500
>
> Check out our web site using the following link.
>
> http://3dresource.com/cts_stl.htm
>
> Hope this helps.
>
>
> Vern Carter
> Creative Technical Solutions
> 6880 Hillsdale Court
> Indianapolis, IN 46250
> 317-578-3445
> fax 317-578-3446
> www.3dresource.com <http://www.3dresource.com>
>
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> -----Original Message-----
> From: owner-rp-ml@ltk.hut.fi [mailto:owner-rp-ml@ltk.hut.fi]On Behalf Of
> Charles Overy
> Sent: Tuesday, April 17, 2001 5:42 PM
> To: rp-ml@bart.lpt.fi
> Subject: a concise description of a buildable RP file
>
>
> Hello List,
>
> I was hoping that someone had a concise description that I could use
(either
> plagiarize or with credit!) or even www link that I could use on our
website
> to describe what constitutes a buildable RP CAD file. I know that is a
> REALLY loaded question that depends on the RP system and preprocessing
> etc... but what I am looking for is a general way to explain to my
clients,
> architects, what a "watertight" .stl file is. I am not so worried about
> the repair of bad normals etc but about the general concept.
>
> Many thanks
>
> Charles
>
>
> 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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>
>
> 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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