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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