Abstract
A new method of making 3-D objects by stereolithography is proposed. To reduce the cost and the size of the system, a short arc discharge lamp is used as a light source instead of the UV laser. To make the fabrication time shorter, multiple spots exposure using optical fibers is employed. Interface software between CAD and stereolithography was developed. The software transforms the 3-D figure data made by CAD to the pixel data for multiple spots exposure. The light beams scan over the surface of the resin using a x-y auto stage and are turned on and off based on the pixel data by shutters. As the result of the basic curing test and the fabrication of 3-D models, the practicality of the system was proved.
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