下照式光投影多材料之三維列印系統開發

本研究之目的是開發出一下照式光投影多材料之三維列印系統，並以最佳化之層加工參數與全自動化系統來製作雙材料之原型。本系統主機構設計運用中空旋轉平台之旋轉將帶動成型平台與下方之光罩系統同步旋轉，使成型平台與光投影位置相同，故在層加工換材料製作時，層與層不會有錯位的情形發生；另外，換材料層加工時，將已成型之工件浸入清洗槽中將未固化之光可固化樹脂去除。本研究將以三種模式製作多材料模型為主要展示模型，有雙樹脂方塊、太極、多層次牙冠，製作結果發現換材料時經由清洗槽之清洗，不會發生光可固化樹脂顏色互染之現象發生。且多材料層與層間可緊密結合，無分層與裂縫之現象發生，最後依加工難易度為序，將雙樹脂方塊、太極與多層次牙冠製作完成。

關鍵字

三維列印；光投影；光固化；多材料

並列摘要

The aim of this study is to develop a multi-materials three-dimensional printing technology based on bottom-exposure projection method, and to optimize the fabrication parameters of the prototype which composes of two materials. The developed system applies a hollow rotatory table to drive the platform and mask generator simultaneously to guarantee the alignment of each layer when switching the tank from one layer to another layer. Furthermore, before switching from one to the other compartment, the work piece which is on the bottom of forming platform is rotated to rinsing compartment to rinse all of the stereolithography resin out. In this study, three cases of patterns are formed to be the mainly multi-materials model including two kinds of resins block, Tai Chi and full denture. In the experimental result, two colors of resin did not dye from one layer to the other layer during printing, no layering and crack on the work piece. Resins block, Tai Chi and full denture were printed one by one depends on the difficulty of processing.

並列關鍵字

three-dimensional ； printing ； projection ； stereolithography ； multi-materials

參考文獻

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國際替代計量

下照式光投影多材料之三維列印系統開發

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