Plaster impregnated gauze can also be purchased at many hobby shops. It is
used by modelers to simulate terrain. One manufacturer is Woodland Scenics.
I believe it may also be available from Micro Mark, a mail order small tool
company catering to hobbyists.
Kevin
-----Original Message-----
From: owner-rp-ml@ltk.hut.fi [mailto:owner-rp-ml@ltk.hut.fi]On Behalf Of
Monica & Glenn Whiteside
Sent: Tuesday, April 03, 2001 7:45 PM
To: Rapid Prototype Mailing List
Subject: Plaster impregnated gauze strips!!
Dear rp-ml::
These plaster impregnated gauze strips seem like a neat way to backup and
strengthen stereolithography models, especially vs. the mess and hassle of
laying up
fiberglas plies!!
Glenn
> ----- Original Message -----
> From: "Rob Browne" <robbrowne@earthlink.net>
> To: <wlfoss@collins.rockwell.com>; <rp-ml@bart.lpt.fi>
> Sent: Tuesday, April 03, 2001 1:45 AM
> Subject: Re: Scanning an aircraft
>
>
> > Wayne:
> >
> > Look into using plaster impregnated gauze strips. They used to be used
> for
> > plaster casts on broken limbs. They're now used by sculptors (like me)
> for
> > a variety of quick, sturdy mold procedures. The strips are available in
a
> > variety of widths from rolls of only 2 inches to full sheets.
> >
> > The strips are cut to manageable lengths, dipped into water, pulled
> through
> > the thumb and forefinger to remove most of the water, then placed
against
> > the surface and rubbed with a finger to help fill the voids between
gauze
> > threads.
> >
> > Successive strips are layered over others, building as thick as
necessary.
> > (I rarely need more than 3 layers.) It's also possible to brush plaster
> > over the last layer to strengthen it a bit more. Finally, if additional
> > stiffening is necessary to prevent warping, the mold can be strengthened
> > with rods attached with the same gauze
> >
> > You can find the "plaster gauze" in art and medical supply houses. I
can
> > give you specific sources if you wish.
> >
> > Good Luck,
> >
> > Rob Browne, sculptor
> > 75 Arbor Road
> > Menlo Park, CA 94025
> > (650) 325-6832
> >
> >
> >
> > > From: <wlfoss@collins.rockwell.com>
> > > Date: Mon, 2 Apr 2001 15:21:36 -0500
> > > To: rp-ml@ltk.hut.fi
> > > Subject: Scanning an aircraft
> > >
> > > Hi everyone,
> > >
> > > We have a project where we need to get 3D data of an aircrafts surface
> in
> > > specific, small areas. Our intent is to plaster cast the surfaces and
> then
> > > have them laser scanned for CAD use. Works great on the top facing
> > > surfaces, but gravity is working against us in the down facing
surfaces.
> We
> > > have considered laser scanning the aircraft itself, but this requires
a
> > > steady, stationary structure to be built because some of these
surfaces
> are
> > > quite high off the ground. Does anyone have any suggestions as to how
we
> > > can take castings of these surfaces or scan them directly off the
> aircraft?
> > >
> > > Thanks,
> > >
> > >
> > > Wayne Foss
> > > Materials & Process Engineer
> > > Rockwell Collins, Inc.
> > > Cedar Rapids, Iowa
> > >
> > >
> > > For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
> >
> >
> > For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
> >
>
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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