光固化3D列印試可分為上照式與下照式，下照式可以節省材料成本、速度快，但會產生分離應力，此力會導致建構失敗。本論文欲針對下照式光固化3D列印系統進行分析，探討如何降低分離應力。
與現有商業機台相比，本研究系統架設於成型平台上加裝荷重元，以量測微電壓的變化，利用比例換算得到分離力，將其除以面積即得分離應力。
因現有商業機台之底材大多為鐵氟龍膜，故本研究以鐵氟龍膜實驗數據作為比較基準。實驗方法使用水玻璃、瓊脂粉、矽膠薄膜、二氧化鈦作為底材、振動方法以及透過合成高電荷密度之樹脂單體或寡聚物作為光固化樹脂，於液態樹脂處建置一電場或磁場，經由控制電場或磁場之強度，使液態樹脂懸浮於空氣中，進而避免產生真空吸附力。
研究結果顯示，矽膠薄膜與瓊脂粉為最佳方法，降低分離應力75%。

Vat polymerization into upper-expose andbottom-expose, bottom-expose can save material, high speed, but incurredseparating stress, whichcause the failure of printing. The present study aim to explore the best method to reduce separating stress in the process of bottom-expose stereolithography 3D Printing System.
The machine is not the same as machinesin the market, which have load cell to measure separating force,separating stress is separating force over curing area.
The substrate of machines in the marketare mostly teflon film, thus, baseline data in this study was the experimental data of teflon film. The experimental method contained water glass, agarose powder, silicone film, titanium dioxide as a substrate, a vibration method and the synthesizing charged monomer or oligomer and set an electric or magnetic field to float the resin up to avoid stack on the tank.
Compared all the experiment results, silicone film and agarose powder were the better methods, the effect of reduce separating stress was 75%.

[1] Castle Island Co., “The Rapid Prototyping Patent Museum.” [Online]. Available: http://www.additive3d.com/museum/mus_1.htm.
[2] T. T. Wohlers and Wohlers Associates, Wohlers Report 2015: Additive Manufacturing and 3D Printing State of the Industry : Annual Worldwide Progress Report. Wohlers Associates, 2015.
[3] “CustomPartNet,” 03-Dec-2015. [Online]. Available: http://www.custompartnet.com/.
[4] “Electron Beam Melting (EBM).” [Online]. Available: https://www.additively.com/en/learn-about/electron-beam-melting.
[5] T. T. Wohlers and Wohlers Associates, Wohlers Report 2014: 3D Printing and Additive Manufacturing State of the Industry Annual Worldwide Progress Report. Wohlers Associates, 2014.
[6] W. K. Swainson, “Method, medium and apparatus for producing three-dimensional figure product,” Aug. 1977.
[7] P. J. Bártolo, Stereolithography: Materials, Processes and Applications. Springer US, 2011.
[8] 龍德政, “快速原型技術在產品研發與製造之應用,” 國立臺灣科技大學, 台北市, 1995.
[9] 翁宇生, “下照式半導體雷射快速原型機之光硬化樹脂成型研究,” 國立臺灣科技大學, 台北市, 1999.
[10] 葉怡昌, “使用線掃瞄可見光之新式快速光罩樹脂硬化系統研發,” 國立臺灣科技大學, 台北市, 1999.
[11] 許興仁, “光罩式樹脂成型快速原型機之研發,” 國立臺灣科技大學, 台北市, 2000.
[12] 江卓培, “新式多光源系統之研發與固化收縮變形之分析,” 國立臺灣科技大學, 台北市, 2003.
[13] 黃文宗, “上照式光罩快速原型系統之研發,” 國立臺灣科技大學, 台北市, 2001.
[14] Optical Sciences Corporation, “Overview of Digital Mirror Device.” [Online]. Available: http://www.opticalsciences.com/dmd.html.
[15] A. Shkolnik, H. John, and A. El-Siblani, “Process for the production of a three-dimensional object with an improved separation of hardened material layers from a construction plane,” Dec. 2010.
[16] EdgE, “DIY high resolution SLA/DLP printer building blog.” [Online]. Available: http://www.khwelling.nl/3d.dlp_printer.php.
[17] 黃育嘉, “動態光罩式三維微影系統之研發,” 國立臺灣科技大學, 台北市, 2004.
[18] 王群智, “使用動態光罩微影技術於單層製作3D微小元件之研究,” 國立臺灣科技大學, 台北市, 2005.
[19] “DLPTM技術概要.” 德州儀器亞洲區DLP事業部門, 2003.
[20] “DLP投影機的優缺點與前景太半洋電腦網.” 太半洋電腦網, 03-Jan-2010.
[21] 鄭正元、汪家昌、沈昌和, “動態光罩模組,” 21-Jun-2004.
[22] 吳文政, “接著劑的原理,” 龍騰文化事業股份有限公司, pp. 46–51, 2006.
[23] 蘇柏向, “微米級積層製造系統大面積微結構曝光之研究,” 國立臺灣科技大學, 台北市, 2015.
[24] Y.-M. Huang and C.-P. Jiang, “On-line force monitoring of platform ascending rapid prototyping system,” J. Mater. Process. Technol., vol. 159, no. 2, pp. 257–264, Jan. 2005.
[25] Formlab, “Formlab.” [Online]. Available: http://formlabs.com/support/printers/form-1/resin-tank-damage/.
[26] Kudo3D, “Kudo3D.” [Online]. Available: http://www.kudo3d.com/shop/titan-1-accessory-bundle2/.
[27] MiiCraft Team, “MiiCraft-3D-printer-User-Guide.” .
[28] Y. Chen and C. Zhou, “Digital mask-image-projection-based additive manufacturing that applies shearing force to detach each added layer,” Nov. 2013.
[29] “光固化立体造型装置,” Mar. 2015.
[30] Asiga, “The Freeform PRO.” [Online]. Available: https://www.asiga.com/products/printers/pro/.
[31] J. R. Tumbleston, D. Shirvanyants, N. Ermoshkin, R. Janusziewicz, A. R. Johnson, D. Kelly, K. Chen, R. Pinschmidt, J. P. Rolland, A. Ermoshkin, E. T. Samulski, and J. M. DeSimone, “Continuous liquid interface production of 3D objects,” Science, vol. 347, no. 6228, pp. 1349–1352, 2015.
[32] J. M. Desimone, A. ERMOSHKIN, N. ERMOSHKIN, and E. T. Samulski, “Continuous liquid interphase printing,” Aug. 2014.
[33] J. M. Desimone, A. ERMOSHKIN, N. ERMOSHKIN, and E. T. Samulski, “Method and apparatus for three-dimensional fabrication with feed through carrier,” Nov. 2014.
[34] Carbon3D, “Continuous Liquid Interface Production.” [Online]. Available: http://carbon3d.com/.
[35] NewPro3D, “NewPro3D.” [Online]. Available: http://newpro3d.com/.
[36] Nexa3D, “Nexa3D.” [Online]. Available: http://www.nexa3d.com/introducing-lspc-technology/.
[37] CARIMA, “CARIMA-Continuous Additive 3D Printing Technology,” 01-Oct-2015. [Online]. Available: http://www.carima.com/ko/node/138.