Sent: Thursday, November 20, 1997 4:24 PM
To: email@example.com; firstname.lastname@example.org; email@example.com; firstname.lastname@example.org; email@example.com; 'Ingrid Timmel'
Subject: RE: Tooling Resins vs. SLA
From: Ingrid Timmel[SMTP:firstname.lastname@example.org]
Sent: Thursday, November 20, 1997 1:40 PM
To: email@example.com; firstname.lastname@example.org; email@example.com; firstname.lastname@example.org; email@example.com
Subject: Tooling Resins vs. SLA
"What is the major advantage of making a SLA mold for injection parts over
casting a mold from heat-resistant epoxy ?"
1. One major advantage is being able to build both/all parts of the mold simultaneously which is not possible when casting from a model of the part.
2. In a case where the model has a lot of mass an SLA shell mold could be less mass and
faster to build than a model.
3. If one needs a mold it may be better to invest time in building the mold directly rather
than spending time on a model as a means to a mold.
"It takes less time to make, clean up the part and cast the mold, than it would
to set up everything for making a mold from SLA."
In some cases, this is true. However, each project needs to be planned based on design requirements and criteria. For example: We do not consider SLA tools for production runs of more than 300 parts or that may require high injection temperatures and pressures in hostile materials; nor do we consider epoxy tools if we need only 25 parts.
In our experience there is perfect justification for the use of both methods.
Eagle Design & Technology, Inc. Ph: 616-748-1022
2437 84th Ave Fx: 616-748-1032
Zeeland, MI 49464 E-mail: firstname.lastname@example.org
USA Web: www.eagledesign.com
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