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Re: Molding sticky substances



"PiRho Tech" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Why not a piston method of the same - teflon (or not) coated cylinder
holes
> (sizes and shapes of your taste).  A cylinder of the same shape oscilates
up
> and down, it also having a non-stick 'bottom' surface.  meanwhile, in the
> 'up stroke, a small amount of the desired compound could be injected from
a
> side port.  the cylinder would press the goop down, and the bottom already
> being on a non-stick sheet, a shape of your choosing would be
> 'pressed'/formed.  The mold could then retract, while the cylinders
> continued to press slightly down while the mold retreated.  How boot that?

I don't think I picture it.  Could you do expound a bit, or provide a rough
drawing?

If you're describing a 'cut-off' type mold, where the comp is injected into
a platen that slides against a nozzle with matching holes, then I
understand.  But it won't work with material that is so sticky it re-bonds
to itself upon contact.  It works fine for automated pumping of comets and
stars made of a fairly dry composition.

LLoyd





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