RE: suitability of machines for jewelry prototyping

From: Erkut Negis (
Date: Mon Mar 18 2002 - 01:19:09 EET

Dear Jeffrey,

By following the link given below, you can find some pictures about gold jewelry pieces manufactured via investment casting of ThermoJet models. As you can see, these "Harry Potter series" jewelry models does not require complicated supports so they are very suitable for the ThermoJet machine:

BTW: 3D Systems Viper is also very suitable for most of the fine jewelry models. Although the material is not suitable for use as a direct investment casting pattern, the model can be used to generate a silicon tool which could be more appropriate for most of the jewelry manufacturers. Because, a silicon tool can be used to manufacture hundreds of wax models for mass production.

I guess that in near future micro stereolithography would be used for fabrication of very fine jewelry models...


Erkut Negis

-----Original Message-----
From: []On Behalf Of Jeffrey Everett
Sent: Saturday, March 16, 2002 9:10 PM
Subject: suitability of machines for jewelry prototyping

A question to those of you using RP to create jewelry patterns. I'm now in the market to purchase or lease a new or used 3D wax printer. My question is, which is considered the most cost effective machine? I know the prices and basic capabilities of each of Sanders machines (and of course, I do want the new RTM! sigh) and the Thermojet (has 3D Systems yet incorporated a support material to replace the break-away supports?). Will anyone with experience using these machines post a little feedback as to actual surface finish or difficulty of bringing cast pieces up to a jewelry level finish? I have the funding in place to purchase or lease the MM2, but do I want to wait until I can afford the RTM? Opinions please, and thank you in advance.
Please feel free to email me directly if you wish.
Jeffrey Everett

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