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The Surface Processing Techniques for the Rapid Model Building with Photosensitive Resin

Liu Yu, Xie Yuanhong, Ren Zhimin Zhang Hanbi, E Maohua (Department of Optoelectronic Engineering,Huazhong University of Science and Technology,Wuhan,430074)  
For 3 D solid model produced by the rapid photosensitive resin,the poor solidifying often appears on its surface.The resin inside the model has been hardened but the solidified on the surface resin is still showing a soft solidifying state.If you feel the surface with finger,it is viscous.This defeat should be improved.The surface viscous phenomenon is analyzed in theory in the paper.This poor surface solidifying is caused by the oxygen retarding action.Based on the analysis,a solving method has been put forward.The original defeat has been solved and the effect is quite well.
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