Re: Wishes
From:
Michael Brindley, Rick Lott (Hughes Aircraft Company)
Date:
Thursday, January 19, 1995
From: Michael Brindley, Rick Lott (Hughes Aircraft Company)
To: Rick Lott (Hughes Aircraft Company), RP-ML
Cc: RP-ML
Date: Thursday, January 19, 1995
Subject: Re: Wishes
> 4. To be able to split an .STL file with workstation software.
What do you mean by "split"? Break a single large part into smaller
pieces (so it can be built in sections and reassembled later)?
Seperate multiple distinct objects in one STL file into seperate
files? etc.?
> 6. 3-D Systems on Internet -- especially since they no longer support
> their bulletin board.
And then they could put standards documents (STL file format ...), test
parts, etc. up for ftp/WWW transfers. This summer at Dayton Dr. Jacobs
said that they had just gotten on Internet (email, anyway) and had no
time table for other things like ftp sites.
> 11. I wish PartMan would recoginize a support file by the "_s.stl"
> designation and plug in a default support parm.
Note: a file name is not adequate identification for data. All data
should be tagged - as an integral part of the file format. Then,
it would be trivial for the software to recognize that this is supposed
to be a support, and take appropriate action. This is a pet 'crusade'
of mine. I'll stop here before I start frothing at the mouth. :)
> 4. To be able to remove "hidden lines" when viewing a .STL file so
> near-facing surface triangles can be examined.
A full hidden line/surface removal is a lot of work for the computer
and the programmer(s). Back-face culling, on the other hand is very
simple and requires little additional work for the computer. Doesn't
3D's viewing software at least allow back-face culling? I saw
Stratasys's software this summer, and it looked very nice. I think
they are selling it seperately from the machines ...
--> Mike Brindley
Reply
Date: Fri, 20 Jan 95 07:54:22 PST
> What do you mean by "split"? Break a single large part into
> smaller pieces (so it can be built in sections and reassembled
> later)? Seperate multiple distinct objects in one STL file into
> seperate files? etc.?
Sure, ok, sounds good. All the above. Why not? A simple cutting
plane would be a good start, but to be able to isolate
non-intersecting solids would be real good too.
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