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No, it's not a submarine!
Something I'm doing for work... thought I'd share it. The original is
much larger in resolution, so some of the smaller details (like the
threading) don't show here. It's a cut-away model of an injection
molding assembly. It was created in AutoCAD from blueprints, then
exported as a series of .3DS files. I imported the .3DS files into
PolyTrans and converted them into a POV smooth_triangle mesh. The final
POV file was a whopping 57.6 meg.
How it works: The plastic (in pellet form) is fed into the large hole at
the upper left and the cylinder is heated by the heater bands that are
wrapped around it. The temperature ranges from 300-900 degrees
fahrenheit, depending on the resin used. The screw spins inside the
cylinder and forces the melted plastic out the nozzle orifice and into a
mold. That's the basic synopsis, anyway. The vertical cylinders are
thermocouples.
--
Doug Eichenberg
http://www.nls.net/douge
dou### [at] nls net
Post a reply to this message
Attachments:
Download 'iso-8859-1' (2 KB)
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Great submarine!
:)
Simon
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I thought it was going to be the titanic when it was about halfway
through loading. Nice looking model, even if I don't know what it is.
:)
-Mike
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Nice! I thought it was a tunnel boring machine.
Doug Eichenberg wrote:
> No, it's not a submarine!Something I'm doing for work... thought I'd
> share it. The original is much larger in resolution, so some of the
> smaller details (like the threading) don't show here. It's a cut-away
> model of an injection molding assembly. It was created in AutoCAD
> from blueprints, then exported as a series of .3DS files. I imported
> the .3DS files into PolyTrans and converted them into a POV
> smooth_triangle mesh. The final POV file was a whopping 57.6 meg.How
> it works: The plastic (in pellet form) is fed into the large hole at
> the upper left and the cylinder is heated by the heater bands that are
> wrapped around it. The temperature ranges from 300-900 degrees
> fahrenheit, depending on the resin used. The screw spins inside the
> cylinder and forces the melted plastic out the nozzle orifice and into
> a mold. That's the basic synopsis, anyway. The vertical cylinders
> are thermocouples.
> --
> Doug Eichenberg
> http://www.nls.net/douge
> dou### [at] nlsnet
--
Come visit my web site:-) : http://www.geocities.com/~thomaslake/
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In article <39874fa3@news.povray.org>, "Doug Eichenberg"
<dou### [at] nlsnet> wrote:
> The final POV file was a whopping 57.6 meg.
Ouch...talk about inefficient. I don't see anything here that couldn't
be done easily with CSG and have a much smaller file size...the threads
on the screws would be the hardest part. They would be possible with
CSG, but probably the best way to do it would be an isosurface. But I
guess you used meshes because it originated as an AutoCad file...
One suggestion: make some more surroundings. Maybe place it on a wood
surface, so the metal has more to reflect.
--
Christopher James Huff - Personal e-mail: chr### [at] maccom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://homepage.mac.com/chrishuff/
TAG Web page: http://tag.povray.org/
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I hate to say it, but I knew it for what it was when I saw it.
There was a time when I was interested in plastics and how they
were worked. In the course of my reading I have seen similar
injectors. This one looks very much like the pictures I saw.
You have done a good job at the modeling.
Mr. Art
> Doug Eichenberg wrote:
>
>
> No, it's not a submarine!
> Something I'm doing for work... thought I'd share it. The original is
> much larger in resolution, so some of the smaller details (like the
> threading) don't show here. It's a cut-away model of an injection
> molding assembly. It was created in AutoCAD from blueprints, then
> exported as a series of .3DS files. I imported the .3DS files into
> PolyTrans and converted them into a POV smooth_triangle mesh. The
> final POV file was a whopping 57.6 meg.
> How it works: The plastic (in pellet form) is fed into the large hole
> at the upper left and the cylinder is heated by the heater bands that
> are wrapped around it. The temperature ranges from 300-900 degrees
> fahrenheit, depending on the resin used. The screw spins inside the
> cylinder and forces the melted plastic out the nozzle orifice and into
> a mold. That's the basic synopsis, anyway. The vertical cylinders
> are thermocouples.
>
>
>
> --
> Doug Eichenberg
> http://www.nls.net/douge
> dou### [at] nlsnet
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> I hate to say it, but I knew it for what it was when I saw it.
> There was a time when I was interested in plastics and how they
> were worked. In the course of my reading I have seen similar
> injectors. This one looks very much like the pictures I saw.
> You have done a good job at the modeling.
Glad to hear someone else recognized it! I see these things everyday at
work (I'm a design engineer for a company called Plastic Process Equipment).
I've seen some incredibly complex mixing screws, a couple feet in diameter
and so large you need a truck to move them. I even designed one that was
used to inject meat by-products into dog bone molds. I once designed a
screw used by a company making solid rocket propellant. The temperature had
to be kept to very strict tolerances to avoid any unfortunate mishaps.
- Doug Eichenberg
http://www.getinfo.net/douge
dou### [at] nlsnet
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How about adding a sense of scale?
You could add something to the scene like the tip of a pencil, the whole
pencil, or the pencil delivery truck-- whichever is appropriate ;-)
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before i read i thought it was a down hole crude oil pump
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also you might want to try some very very small scratches on some of the
metal and some texture or somthing so it looks like real
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On Tue, 1 Aug 2000 18:31:01 -0400, "Doug Eichenberg" <dou### [at] nlsnet>
wrote:
>No, it's not a submarine!
I see perfectly well what it is and I hate it! No, not your model,
it's perfect and there lies the problem -- it reminds me of my
Manufacturing Processes exam in September :((
Really, really good modelling!
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
TAG e-mail : pet### [at] tagpovrayorg
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i worked in rotomolding, but not injection molding. fun college job.
Doug Eichenberg wrote:
>
> > I hate to say it, but I knew it for what it was when I saw it.
> > There was a time when I was interested in plastics and how they
> > were worked. In the course of my reading I have seen similar
> > injectors. This one looks very much like the pictures I saw.
> > You have done a good job at the modeling.
>
> Glad to hear someone else recognized it! I see these things everyday at
> work (I'm a design engineer for a company called Plastic Process Equipment).
> I've seen some incredibly complex mixing screws, a couple feet in diameter
> and so large you need a truck to move them. I even designed one that was
> used to inject meat by-products into dog bone molds. I once designed a
> screw used by a company making solid rocket propellant. The temperature had
> to be kept to very strict tolerances to avoid any unfortunate mishaps.
>
> - Doug Eichenberg
> http://www.getinfo.net/douge
> dou### [at] nlsnet
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"ryan constantine" <rco### [at] yahoocom> wrote in message
news:3987D374.1A84B70B@yahoo.com...
| i worked in rotomolding, but not injection molding. fun college job.
|
| Doug Eichenberg wrote:
| >
| > > I hate to say it, but I knew it for what it was when I saw it.
| > > There was a time when I was interested in plastics and how they
| > > were worked. In the course of my reading I have seen similar
| > > injectors. This one looks very much like the pictures I saw.
| > > You have done a good job at the modeling.
| >
| > Glad to hear someone else recognized it!
I didn't really know exactly, although I was guessing some sort of liquids
transporter/compressor.
Nice CAD drawing ;-)
Bob
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Besp submarine I've seen done in pov.
Either it's in a dry dock or you're not all that good
at doing water.
--
Cheers
Steve email mailto:ste### [at] zeroppsuklinuxnet
%HAV-A-NICEDAY Error not enough coffee 0 pps.
web http://www.zeropps.uklinux.net/
or http://start.at/zero-pps
9:44pm up 18 days, 20:10, 2 users, load average: 1.00, 1.00, 1.00
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Peter Popov wrote:
> >No, it's not a submarine!
>
> I see perfectly well what it is and I hate it! No, not your model,
> it's perfect and there lies the problem -- it reminds me of my
> Manufacturing Processes exam in September :((
Oh, you mean one of those pointless wasteful classes that are included
in college cirriculum? (My brother had to learn Semiconductor
Manufacturing Process for ECE, which isn't that bad, and Folk Music of
the World as part of the cultural diversity political re-education that
has infected this country.
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
Please visit my website: http://www.faricy.net/~davidf/
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Cool, does it have nuclear missiles and a fission generator?
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
Please visit my website: http://www.faricy.net/~davidf/
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Funny looking fountain pen you have there.....
Mark
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Great work! Spending enough to get AutoCad, and getting good enough to use
it, seemed like too far to go to have fun with Pov (to me). My hats off to
you.
This is the kind of stuff I enjoy doing. :) Your pov file is too large
though. May I recommend the mesh compressor? :) My latest, greatest work of
wonder came in at around 10 megs, which compressed to just over 1.5 Megs.
Grim
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> This is the kind of stuff I enjoy doing. :) Your pov file is too large
> though. May I recommend the mesh compressor? :) My latest, greatest work
of
> wonder came in at around 10 megs, which compressed to just over 1.5 Megs.
Yes, you may recommend it. Check out my post in general a week or so
back... I compared file size in a bunch of different formats, and warps PCM
format was one of the smallest. Compression was around 75%. You can also
use Chris's hair growth macro on PCM files (very cool macro BTW).
Doug Eichenberg
http://www.nls.net/douge
dou### [at] nlsnet
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Honestly... you folks are too much. What a bunch of hilarious
responses.
Doug Eichenberg
http://www.nls.net/douge
dou### [at] nlsnet
Post a reply to this message
Attachments:
Download 'iso-8859-1' (1 KB)
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I've Seen one of those... I know a guy who works on them..... now if
he could "slip" me some of the blue prints..........
Doug Eichenberg wrote:
> No, it's not a submarine!Something I'm doing for work... thought I'd
> share it. The original is much larger in resolution, so some of the
> smaller details (like the threading) don't show here. It's a cut-away
> model of an injection molding assembly. It was created in AutoCAD
> from blueprints, then exported as a series of .3DS files. I imported
> the .3DS files into PolyTrans and converted them into a POV
> smooth_triangle mesh. The final POV file was a whopping 57.6 meg.How
> it works: The plastic (in pellet form) is fed into the large hole at
> the upper left and the cylinder is heated by the heater bands that are
> wrapped around it. The temperature ranges from 300-900 degrees
> fahrenheit, depending on the resin used. The screw spins inside the
> cylinder and forces the melted plastic out the nozzle orifice and into
> a mold. That's the basic synopsis, anyway. The vertical cylinders
> are thermocouples.
> --
> Doug Eichenberg
> http://www.nls.net/douge
> dou### [at] nlsnet
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Can you say "corporate confidentiality?" :)
--
Doug Eichenberg
http://www.nls.net/douge
dou### [at] nlsnet
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