Thin Layers

From: Lightman, Allan J. (LIGHTMAJ@main.udri.udayton.edu)
Date: Fri Nov 22 1996 - 20:09:00 EET

     C. Clodfelter
     Rexam Closures asked:

   "Has anyone out there heard of any rp systems that can build a layer
     thickness in the 5-10 micron range. Someone at this company remembers
     some discussion about ultra thin layers. I have had some success with
     .0025" layers with my SLA-250 but anything smaller would be difficult
     with my current setup.

     I know 5-10 micron layers sounds like a stretch, make that a leap, but
     please let me know if anyone has heard of any work or discussions in
     this area."

In commercial systems, the D-MEC SCS1000HD can build parts with a layer
thickness of 25 micron. This is the thinnest layer commercial machine to my
knowledge. In 1994 Professor Ikuda of Kyushu Institute of Technology
presented a paper titled "Ultra High Resolution Stereo Lithography for Three
Dimensional Micro Fabrication" at the Fifth International Conference on
Rapid Prototyping, Dayton, Ohio. He showed parts that he fabricated with
feature dimensions in the 5 micron range. I do not think there has been a
commercialization of this technology.

Allan Lightman
University of Dayton Research Institute

lightman@udri.udayton.edu

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