RE: Autodesk / IGES problems

From: Mauro Orio (
Date: Mon Feb 09 1998 - 21:57:33 EET

At 17.00 06/02/98 -0600, you wrote:

Here at Promau we are used to convert from an IGES to a STL via Brock Rooney.
It's working fine on Autodesk IGES too.Please take care about exploding in
3d FACES etc. like Rooney suggested.
>From time to time we have to fix some untrimmed surface using ALIAS software.
In any case today we aren't receiving a lot of Autodesk files.

I hope this help


Promau Engineering
Mauro Orio.

>You are basically right, but the fact remains that there is a minimum of
100K seats of the stuff being used by companies who think that they can go
directly to RP with little or no added expense. Simply not true!!!
>At issue is how do we use what is already created?
>Not what to use instead of XYZ software.
>-----Original Message-----
>From: Bill Seil []
>Sent: Friday, February 06, 1998 10:54 AM
>To: Delft Spline Systems
>Subject: Re: Autodesk / IGES problems
>I haven't been keeping up with AutoDesk products but:
>I think the problem you are having with "Good" IGES files is:
> the creator
> the complexity of the geometry
> not using true SOLIDS
>I was under the impression that AutoCAD creates wireframe based geometry
>(like chicken wire). It is not a TRUE SOLID geometry representation,
>they say its a solid but....
>I've also heard that Mechanical Desktop latsest version works in solids.
>I would create it in Mechanical Desktop, Pro-E, SolidWorks, or other
>solids based programs and see if you get different results.
>-Bill Seil
>Delft Spline Systems wrote:
>> Vern Carter wrote:
>> >>My question; Is there a way within these products or through some third
>> >>party software to produce good STL files form ACAD NURBS surfaces, ACAD
>> >>Designer Solids or PMESH 3D models?
>> Kevin Robertson wrote:
>> >The fact that your IGES out is not much better than STL is of concern. If
>> >your IGES out is good you can use a second tier software like Brockware to
>> >convert the IGES to STL. Brokware is a better conversion software than the
>> >one in AutoCad, IMHO.
>> 1.
>> Note that the standard Autocad IGES export function is completely worthless.
>> You have to buy a separate add on called the Autodesk IGES translator.
>> This one should do better.
>> 2.
>> Brockware is reported to make correct IGES to STL conversions, however
>> is is quite expensive (I remember ca USD 3,000.00)
>> On the Web I saw a package called Cadmover from Kandusoft
>> (, offering many more translation for USD 500
>> Anyone having experiences with this software for IGES to STL ?
>> Regards
>> Lex Lennings. << File: vcard.vcf >>
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