[Milsurplus] Making mold for parts

[Gary Pewitt]

Check out Lindsey Books www.*lindsay*bks.com/ They have books on the 
subject and even on building a simple injection molding unit that will 
make small items such as knobs out of melted milk
bottles (plastic of course). Warning Lindsey books are habit forming.
73 Gary N9ZSV



John Hutchins wrote:
> List -
> What I have:
> Unit is a HP8601A  with all sorts of USAF Mil Lab stickers and plates, 
> not a unique
> piece milsurplus unit, but it has papers }.
>
> The Problem:
> I have a lighted push button switch cap missing.  Presently I use a #2 
> pencil  eraser end to
> turn on and off the unit.  I have searched the web for, a replacement or 
> new lighted switch,
>  or a replacement cap.  No luck.
>
> My Thoughts:
> Thought of  paying a few dollars for a junk unit to strip out the switch 
> has crossed my mind;
>  But! -here is where trouble starts-   If I could make a mold and pour a 
> plastic casting:
>     Economically - the create your own mold might not make sense but 
> would be a interesting
>     project, that could prove valuable later.
>
> Need your Feed back:
> Conceptually this seems simple, but I have been there before; and it was 
> not pretty:
> Any Comments, has anyone attempted to make a mold?
>
> What materials would I need to make a simple mold for a small plastic part?
>
>
> Thanks
> Hutch
>  
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