快速原形（R.P.；Rapid Prototyping）技術原理為利用層加工的方式，來達到建構3D實體工建的目的。在量產前的產品設計、逆向工程上等運用都相當廣泛。優點在於工件便於設計與修改、加工成品的速度快與節省開發量產的成本等，能因應業界和各領域迅速開發的需求。快速原形技術的發展已有相當一段時間，目前全世界有不少的商業化機種。其成形製程的分類，可從材料面、進料方式、支撐材的運用、母材的加工成形方式等做討論。
本文主要內容為開發一種新的快速原形製程，從利用氣壓噴槍的進料方式、二階段材料成形的概念、提升精度孕育而生的支撐層、介紹面光源的優勢與選用適合的光源、人機介面的開發與設計自動控制的流程等做探討。透過開發新型機台的方式，引用新的想法與技術，以期能在快速原形技術的領域上，不論在成形工時、工件成形品質上，做出一定的貢獻。

The Rapid Prototyping (R.P.) technology which is generally used to manufacturing a three-dimensional solid part is based on the layer forming method. The R.P. technology had been devised in 1978 and its advantages are easy to achieve the purposes of saving time and cost. In recent years, many kinds of commercially available machines are invented successively. However, all the existing R.P. devices had some faults. Thus, in this thesis, a new type of R.P. process is proposed to improve the quality of the articles and decrease the cost of the current R.P. machines.
The process of the new R.P. is called “Sequential Two-stage Layer Forming Process”. The process started from using a spray gun to spread a thin layer of polymeric material on the forming bed, followed by using the two-stage forming method to carry out the layer manufacturing process. Based on the new idea, this thesis had developed, designed and fabricated a brand new machine. With this machine, the concept of the new R.P. machine which is expected to achieve the target of low-cost and fast process is implemented.

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