From: thoms1991 (thoms1991@hotmail.com)
Date: Sat Jan 25 2003 - 16:59:38 EET
Additionally: The support wax only partially dissolves and mostly sloughs-off and requires gentle irrigation or brushing for removal. Best Regards, Tom Richards, Metallurgist
----- Original Message -----
From: Stanley Lechtzin
To: Rob Connelly
Cc: RP-ML
Sent: Friday, January 24, 2003 11:36 PM
Subject: Re: Dissolving SL Resin?
Hi Rob -
How about using the Sanders process? The support wax used in this process will dissolve at approx. 60 deg. C. using BioAct as a solvent.
Cheers,
- Stanley
At 08:48 PM 1/23/2003 -0500, Rob Connelly wrote:
Hello RP'ers,
I have a resin question for the group. I have a customer who wants to make some tiny little parts on a high-res SL machine for a medical application. Trouble is, he needs the parts for a process similar to investment casting wherein he will shell them with something, and then dissolve the SL part back out of the shell. He can't use high temperatures as in investment casting -- he needs to use a solvent.
So, is anyone aware of a resin that can be used in a high-res SL machine (either a Viper or a 250HR) that can dissolve in acetone, xylene, MEK, or other such nasty chemical? Do the old acrylates dissolve? My customer has told me that just softening or deteriorating is not good enough -- it has to dissolve. If this does exist, do you know of a vendor who has this combination to whom I can outsource the job?
Thanks in advance for your time,
Rob Connelly
FineLine Prototyping, Inc.
6300 Limousine DR
Suite 130
Raleigh, NC 27613
919-781-7702
rob@finelineprototyping.com
Prof. Stanley Lechtzin
Temple University
Tyler School of Art
Metals/Jewelry/CAD-CAM
7725 Penrose Ave.
Elkins Park, PA 19027
phone: 215-782-2863
fax: 215-635-2861
email: stanley@comcast.net
stanlech@temple.edu
http://www.temple.edu/crafts
M/J/C-C web site
http://listserv.temple.edu/archives/acmet-l.html
ACMET-Listserv
http://oll.temple.edu/crafts233_public/
Online CAD/CAM I Course
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