David,
There is probably a number of different routes you can try here. You may
also want to try making the mould directly by one of the rp processes. 400F
is not too high so I suspect you could cast pewter into almost all rp
cavities (e.g. SL, SLS, FDM, LOM, ZCorp etc.). We have recently injection
moulded PEEK (which has a melting temperature of 400C) into SL cavities so
400F should be okay.
Good luck.
Phill
Prof. P. M. Dickens
Dept. of Engineering & Technology
De Montfort University
The Gateway
Leicester
England LE1 9BH
Tel: +44 (0)116 257 7689
Fax: +44 (0)116 257 7025
Mobile: +44 (0)7768 827039
Email: pdickens@dmu.ac.uk
<http://www.cse.dmu.ac.uk/RMG/Welcome.htm>
-----Original Message-----
From: Douglas A. VanPutte [mailto:dvanputt@rochester.rr.com]
Sent: 22 December 2000 13:49
To: rp-ml@bart.lpt.fi; David Bolack
Subject: Re: Prototyping
David,
One way to utilize rapid prototyping for your needs is to cast a silicone
rubber mold from a well finished rp master, then cast up to 30 or more
ceramic duplicates in the rubber mold. It's an extra step to get one pewter
figure, but a good way to make multiple figures.
Happy Holidays,
-- Doug - Douglas A. VanPutte Senior Sales Agent Protoform North America 716-889-3601 716-889-7335 (fax) dvanputt@rochester.rr.com http://www.protoformna.com----- Original Message ----- From: David Bolack <dbolack@galstar.com> To: <rp-ml@bart.lpt.fi> Sent: Thursday, December 21, 2000 8:08 PM Subject: Prototyping
> Excuse this bit. I come from way left field of the engineering industries. :) > > Not having much luck investigating the different rapid > prototyping processes out there, I'm turning here for some advice. > > We're investigating using rapid prototyping to create masters for molds > for pewter figures. It's a fascinating technoology that looks like it > could be used in this capacity, possibly far more cheaply than hand > sculpting. What I can't quite find out is what processes would survive the > 400 F temperatures for making our molds. > > Anything that will take detail well and survive making the mold would be > acceptable. Low cost, naturally, is a plus. :) > > Any pointers or direct advice would be greatly appreciated. > > > 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/
This archive was generated by hypermail 2.1.2 : Fri Jan 04 2002 - 09:56:41 EET