Re: [CAD_CAM_EDM_DRO] [OT] 3d printer video

Using Alumilite or Smoothon 2 part RTV Silicone will easily give you a
nice mold, and is pretty gentle on your original, and you can then cast
in resin or a high strength urethane, or other materials (even
fiberglass) if you wish. You can even do a certain amount of undercuts,
etc. A complex part may, of course take a two piece or more mold.

Cheers,

Wreno

David G. LeVine wrote:

>
> Kim Mortensen wrote:
> > <snip> After having "printed" out this plaster item, how can it be
> converted into
> > a usable object in another material? Is ist possible to make molds
> of it or
> > what would the obvious way be to use the printed items. - Im looking
> for an
> > argument for trying this out. I would like to be able to make items in
> > plastic or if possible cast alu/iron.
>
> Sandcasting for Al is pretty straight forward. You must be aware that
> the pattern (which the RP made) needs to have "draft and no "undercuts",
> but that is about the worst of it.
>
> The Gingery book is a good starting place, then it gets expensive in a
> big hurry! ;)
>
> --
> David G. LeVine
> Nashua, NH 03060
>
>
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