28771Re: [hobbicast] Re: pattern making
- Oct 5, 2003Hallo all,
15 years ago when I made patterns as a Tech Officer assisting a Lecturer in
The subject of Patternmaking and Foundry Practice I used a timber called
Jelutong it is soft with little or no grain and sands up to a nice finish.
It was then finished with a "Patternmaking Paint" which was very hard.
Brian and Rena in South Oz.
----- Original Message -----
From: "nh_farmer" <nh_farmer@...>
Sent: Sunday, October 05, 2003 7:26 AM
Subject: [hobbicast] Re: pattern making
> The only foundry I saw finish the wood patterns used a varnish like
> polyurethane. They used mahogony for the wood pattern and sanded it
> to a smooth finish. Generally they used the wood pattern unfinished
> to make up the production patterns out of metal.
> --- In email@example.com, integerspin <richard@i...> wrote:
> > hi
> > I subscribed to this group for a while about six months ago.
> > I didn't in fact do the castings I needed my self, I had a small
> > foundry do them.
> > I made an mdf pattern and have had about 20 of these items done so
> > I am just altering the pattern prior to haveing another ten cast.
> > Becuse i made the pattern without any undercut's I have to machine
> > a lot off the casting, so I am removing what I can from the
> > quicker to remove it onces than ten times?
> > I wondered what people paint patterns with, I was talking to
> someone at a
> > landrover show and he said they use a 2pack floor paint on their
> > brushed on it flows out like glass and is quite hard.. I didn't ask
> > paint or where I get it though..
> > I did look in 'Bodge it and Quick' they have a few types of paint
> > sound promising, but i cant spend a tenner a can on a few types of
> paint in
> > the
> > hope it is ok...
> > any ideas..
> > --
> > thanks richard
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