積層製造在工業領域已經發展了四十年並擴展到醫療及航太領域。在台科大高速3D列印中心，有自主開發的頁寬式雷射機器（Page-wide Diode Laser），是先進粉床融合機台並且搭載超過數百個半導體雷射的機台，此機台每層只需在幾秒鐘內就能燒結A4大小的列印區域，節省列印時間並可以燒結多種材料。雖然這台機器有很多優點，但當研究者們想知道新材料的可行性，他們不得不購買未知的材料來做研究，非常浪費金錢和時間。在市面上很少有光學軟體可以產生隨機大小的粉末。此外，有些材料是低吸光度，例如：PMMA，它必須與其他高吸收率材料混合。因此，本研究旨在開發客製化軟體，涵蓋粉末輸送和光學路徑之功能。
建構軟體前需了解基本物理包括運動學與光學，首先需要將所有物理因素簡化並找出影響較小的參數並消除，並再導入到軟體裡面。
此軟體完全由C++開發並結合Bullet Physics，軟體提供研究者許多有用的功能，例如，動態碰撞、光學路徑、可視化結果、動畫等。
研究結果呈現出粉末在列印區的分布狀況，以及雷射如何穿透到粉末下方的路徑，並量化每個粉末的吸收能量。研究成果有助於提高研究者對新材料能否在機器上使用的了解。

Additive Manufacturing has been developed in industrial field for four decades and extended applications to the medical and aerospace. In high-speed 3D printing center, there is customized machine called Page-Wide Diode Laser (PWDL) which is advanced type of powder bed fusion with over hundreds diode laser. The machine takes few seconds sintering a A4 size printing area which induces saving the printing process time and is able to sinter wide-range of materials. Despite many advantages of this machine, researchers are still trying to check the feasibility of new material. They have to buy unexpected material to do trial-and-error research which spends much money and time. Few optical software which can generate random size powder is available on market. Furthermore, some material, like PMMA, is low in absorptivity which has to mix with other high absorbance material. Thus, this study developed customized physics engine including powder delivery and optical path in the Page-wide diode Laser.
Realizing the fundamental physics on kinematics and optics is important for building the physics engine. Initially, all physical factors need to be simplified, and parameters with small impacts need to be eliminated. Then, applying into the software.
The physics engine is fully developed by C++ and integrated with bullet physics. It covers many useful functions for researchers. For instance, dynamics collision, optical path, visualized results, animation etc.
The results showed the powder distribution on printing area in powder delivery displayed how laser penetrate to the underneath powder, and then quantify the absorbed energy on each powder. Whole results help increase the understanding whether the new material can be used on the machine.

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