三維列印技術主要分為七大製程，目前市面上以熔融沉積成型(Fused Deposition Modeling, FDM)製程方式較受歡迎，透過將材料加熱至熔融狀態從噴頭擠出於列印平台上，當材料接觸到常溫後回復至固體型態因而成型，重複進行層層堆疊列印出三維物件，FDM機台具有容易操作的特性，但大多數的使用著受限於繪製三維圖檔，進而導致FDM列印技術無法普及，本論文利用三維列印層層堆疊原理，將二維影像轉換淺浮雕方式進行3D建模，並進行路徑規劃生成G-Code檔案，再將檔案傳輸至列印機使其自動列印，達成整體自動化目標。
論文中使用Python撰寫程式，將二維影像讀取像素，記錄其像素與座標點，利用像素差異建立高度分層，略過以往STL檔案的存取，避免存成STL檔案時會產生的缺點，提高印製成品的精細度，分層後的座標點進行路徑規劃，編譯成三維列印所需的G-Code路徑檔，利用無線傳輸方式將G-Code傳輸至三維列印機，三維列印機結合樹莓派微處理器使其具有無線傳輸功能，機器在讀取指令後開始列印，最終完成二維影像轉淺浮雕三維圖檔的印製。

Additive manufacturing mainly have seven different construction methods. Nowadays, fused deposition modeling is the most popular technique of additive manufacturing. The principle of manufacturing is heating material until becoming semi-molten state. After that, nozzle will extrude semi-molten material on the flat platform. When the semi-molten material rapid cooling down, it returns to solid state. Repeating the process above, layer by layer, the three-dimensional objects are accomplished.
Easy to use and simple maintenance, those are advantages of fused deposition modeling machine. But a lots of people can’t utilize this part of additive manufacturing, the most difficult thing is to create three-dimensional model file. Based on these reasons, this thesis establishes a program that convert two- dimensional image to a low-relief three-dimensional model and creates path planning to form G-code file. After that, the G-code file will transport to FDM machine. When receiving G-code, it will print object. In order to lower technical threshold, all processes will be executed automatically.
STL file has some disadvantages when deal with the 2D transforming to 3D low-relief by recording object’s contour. It is used new modeling method to improve quality in final product. As the 2D image being imported, the program analyzes pixels of 2D image and records point coordinates. After that, according to pixel difference, it will establish different layer data with different height. Each data is transformed to G-code command that control FDM machine.

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