Stefan,
The .125" thick ABS vacuum forms without much trouble. Thicker
plastics will also work but it starts getting difficult. Thicker
sheets may need top and bottom heaters and a very powerful vacuum
pump. I've seen .250" ABS vacuum formed at a fabricators plant. It was
a 48" x 96" sheet. The machine was huge and so was their electric
bill!! I'll stay with the thinner materials... lol
Tom
--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:
>
> On Tue, 02 Jan 2007 18:12:50 +0100, twb8899 <twb8899@...> wrote:
>
> > I use vacuum formed parts in my product line. The plastic parts are
> > made from .040" or .060" high impact polystyrene and .060" and .125"
> > ABS. My vacuum forming machines are made by Diacro and Q-Vac. I
> > purchase the materials as I need them so the moisture usually isn't a
> > problem. The Diacro machine is smaller but I have formed .125" ABS
> > parts 6" deep with this machine. My molds are made from hardwood and
> > sometimes I solder pieces of circuit board laminate together to make
> > the shape needed. Most of the molds I use are positive molds but I
> > almost always use negative (cavity) molds for the deep parts.
>
>
> I did not know plastic that thick can still be vacuum formed, good
to know!
>
> ST
>