Re: Producing translucent plastics for case parts

[Stephen Shaw <stephen@apple2.org.invalid.za>]

On Mon, 10 Jun 2002 13:42:07 -0000, Matthew Russotto wrote:

> In article <3d0424ab$1_3@news.teranews.com>,
> Bryan Villados <news002@macgeek.org> wrote:
>>The reason why I'm more interested in experimenting with injection molding
>>is that you can re-create a part almost 100-percent and that it would fit
>>perfectly into a shell that already exists.
>
> Not surprising, since the original was injection molded.  (I think so,
> anyway)
>
>>Like Leslie recommended earlier, I'm going to start looking around Oahu to
>>see who's offering injection molding services, and probably expand outside
>>of Hawaii if nothing's available locally. I'm clearly understanding now that
>>the most expensive part of all of this is creating the mold itself. The
>>injection of the resin or other plastic seems to be the cheap part of it
>>all.
>
> Yep.  Injection molding is only economical in large quantities; I have
> no idea what counts as "large" though.

I think you'll find the cost of producing the die (through a tool and die shop)
prohibitive. If you have a pantograph, CAD program and access to a Gerber
controlled milling machine maybe not.

>
> There's also finishing steps such as making the screw holes.

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