本研究利用多材質氣壓擠出積層製造系統來建立光固化樹脂加工資料庫，硬體部分以三軸龍門式機構和CNC控制器為基底，加上多噴頭氣壓擠出模組作氣壓擠出外加DA控制器和電控比例閥來彈性控制氣壓，周邊I/O為正負壓與固化UV光源之控制。軟體部分則是結合商用切層軟體和改良過的後處理程式來處理大量的切層資料和插入加工程式，同時也提升了資料處理效能和切層資料後處理的正確率。
依據材料特性和選定針頭尺寸後，透過固定氣壓改變機台移動速度的方式，可以量測到該氣壓下可列印出線條的極限速度，蒐集在一固定氣壓固定速度下的線徑數據。在可用範圍內針對不同氣壓與列印速度進行列印及線徑量測，就可以建立線徑與氣壓和機台移動速度的關係圖。因此在不同列印速度下，調整氣壓即可得到一致的列印線徑，並且可以轉變為切層軟體和後處理程式的列印加工資料數據庫，本研究建立三種材料之等線徑加工參數。
本研究加入支撐結構的設計讓光固化樹脂的邊框可以維持，並且成功建立出三種列印的模式，可根據使用的材料種類的多寡(軟材、硬材、支撐材)來選取對應到的噴頭作列印，在切層軟體的設定中應用加工資料數據庫中的資料，針對欲列印的線徑選取對應的機台移動速度和氣壓，氣壓驅動之壓力可隨機台移動速度的改變作調整，最後也有利用這些參數列印一些樣品進行驗證。

In this study, a multi-material pneumatic extrusion based additive manufacturing system is used to found a vat photopolymer printing parameters database. The hardware part is based on three-axis gantry mechanism and CNC controller with equipped multi-nozzle modules. The peripheral I/Os include positive, negative pressure extrusion and light curing source. The software part combines commercial slicing software and advanced post processing code together which can handle a large amount of slicing data and also improve the efficiency.
Considering the characteristic of materials and selecting the dimension of nozzles, the limited velocity can be determined through the way of changing machine moving velocity in a constant air pressure. The printing parameter relation can also be obtained after the width data of the printed wire are measured from different pressure and printing speed, and it can be converted to the vat photopolymer printing parameters database. Therefore, a constant diameter can be obtained by regulating the pressure for different printing speed. The printing parameters of three materials are also constructed in this study.
The design of support material makes the vat photopolymer’s outer perimeter can be maintained, and there are three printing modes being successfully developed in this study that can use hard, soft and support material according to the quantity of nozzles. Meanwhile, the printing parameters can be utilized in slicing software and the pressure can be adjusted based on the machine velocity. Finally, there are some samples being printed for verification.

[1] 鄭正元、江卓培、林宗翰、林榮信、蘇威年、汪佳昌、蔡明忠、賴維祥、鄭逸琳、鄭中緯、宋宜駿、陳怡文、賴信吉、吳貞興、許郁淞、陳宇恩，3D列印-積層製造技術與應用，全華圖書股份有限公司(06339)，2017。
[2] “ISO/ASTM 52900:2015 Additive manufacturing—General principles—Terminology,” ISO/TC 261 Additive manufacturing, December, 2015. Available: https://www.iso.org/standard/69669.html
[3] 邱琬雯,“積層製造產品化技術關鍵”工研院IEK， 台灣，2017。擷取自: https://www.moea.gov.tw/MNS/doit/industrytech/IndustryTech.aspx?menu_id=13545&it_id=101
[4] Zemin Liu et al., “A 1 mm-Thick Miniatured Mobile Soft Robot With Mechanosensation and Multimodal Locomotion,” IEEE. Robotics and Automation Letters, vol. 5, no. 2, PP. 3291-3298, April, 2020. DOI: 10.1109/LRA.2020.2976306.
[5] J. Cao, W. Liang, Y. Wang, H. P. Lee, J. Zhu and Q. Ren, “Control of a Soft Inchworm Robot With Environment Adaptation,” IEEE. Transactions on Industrial Electronics, vol. 67, no. 5, pp. 3869-3818, May, 2020. DOI: 10.1109/TIE.2019.2914619.
[6] “Size of the global market for industrial and non-industrial robots between 2018 and 2025,” Available: https://www.statista.com/statistics/760190/worldwide-robotics-market-revenue/
[7] “高工產研·分析”高工產業研究院，2018，擷取自: https://read01.com/zh-tw/Q3RG7Am.html#.XvNi3ygzaUk
[8] “Overview of single-step AM processing principles for polymer materials,” World Trade Organization Technical Barriers to Trade Committee, Available: https://compass.astm.org/EDIT/html_annot.cgi?ISOASTM52900+15
[9] “影響SLA/DLP/LCD 3D打印之速度有哪些，”擷取自: https://www.chitubox.com/zh-TW/article_indepth_17839_1_25.html
[10] “Introduction to FDM 3D printing,” Alkaios Bournias Varotsis, Available: https://www.3dhubs.com/knowledge-base/introduction-fdm-3d-printing/
[11] “What is Material Jetting,” All3DP, Available: https://all3dp.com/2/what-is-material-jetting-3d-printing-simply-explained/
[12] Zhuo Li, Wei Guo, Yuayan Huang, Kanhao Zhu, Haokun Yi, Hao Wu, “On-skin graphene electrodes for large area electrophysiological monitoring and human-machine interfaces,” ELSEVIER. Carbon, vol. 164, pp. 164-170, July, 2020. DOI: 10.1016/j.carbon.2020.03.058.
[13] Siqin Zhao, Rentao Mu, Yanxiao Ning, Qiang Fu, Xinhe Bao, “Modulating electronic structure of graphene overlayers through electrochemical intercalation,” ELSEVIER. Carbon, vol. 552, Aug., 2020. DOI: 10.1016/j.apsusc.2020.146359.
[14] M. Alruwaili, J. A. Lopez, K. McCarthy, E. G. Reynaud, and B. J. Rodriguez, “Liquid-phase 3D bioprinting of gelatin alginate hydrogels: influence of printing parameters on hydrogel line width and layer height,” Bio-des. Manuf., vol. 2, no. 3, pp. 172-180, July, 2019. DOI: 10.1007/s42242-019-00043-w.
[15] S. Naghieh, M. Sarker, N. Sharma, Z. Barhoumi and X. Chen, “Printability of 3D Printed Hydrogel Scaffolds: Influence of Hydrogel Composition and Printing Parameters,” Sci. Applied Sciences, vol. 10, no. 1, p. 292, 2020. DOI: 10.3390/app10010292.
[16] E. Sodupe-Ortega, A. Sanz-Garcia, and C. Escobedo-Lucea, “Accurate calibration in multi-material 3D bioprinting for tissue engineering,” Materials, vol. 11, no. 8, p. 1402, 2018. DOI: 10.3390/ma11081402.
[17] Z. Chen, X. Zhang, P. Chen, W. Li, K. Zhao, L. Shi, K. Liu and C. Liu, “3D multi-nozzle system with dual drives highly potential for 3D complex scaffolds with multi-biomaterials,” International Journal of Precision Engineering and Manufacturing, vol. 18, no. 5, pp. 755-761, May, 2017. DOI: 10.1007/s12541-017-0090-8.
[18] Shi Shen et al., “Three dimensional Printing-Based Strategies for Functional Cartilage Regeneration,” Tissue Engineering, vol. 25, no. 3, June, 2019. DOI: 10.1089/ten.teb.2018.0248.
[19] S. Song, J. Choi, Y. Park, S. Hong, J. Lee, C. Ahn, H. Choi, K. Sun, “Sodium Alginate Hydrogel-Based Bioprinting Using a Novel Multinozzle Bioprinting System,” Artificial Organs, vol. 35, no. 11, Nov, 2011. DOI: 10.1111/j.1525-1594.2011.01377.x.
[20] S. Yang, H. Tang, C. M. Feng, J. P. Shi, J. Q. Yang, “The Research on Multi-Material 3D Vascularized Network Integrated Printing Technology,” MDPI. Micromachines, vol. 11, no. 3, Feb, 2020. DOI: 10.3390/mi11030237.
[21] S. Jaligama, J. Kameoka, “Three-dimensional coaxial multi-nozzle device for high-rate microsphere generation,” Springer, Polymers & Biopolymers, vol. 54, no. 22, Nov, 2019. DOI: 10.1007/s10853-019-03865-2.
[22] K.W. Chen, M.J. Tsai, H.S. Lee, “Multi-Nozzle Pneumatic Extrusion-Based Additive Manufacturing System for Printing Sensing Pads,” Inventions 2020, vol. 5, no. 3, pp. 29, July, 2020. DOI: 10.3390/inventions5030029.
[23] 三軸平台點膠機LH-400T，Available: https://lihsi.com/dispensing-equipments/automated-dispensing-robots/3-axis-automated-glue-dispensing-robot/
[24] 陳凱維，“多噴嘴氣壓擠出積層製造系統設計與應用於壓電式感測墊片成型之研究”碩士論文，台灣，2019。
[25] HC控制器(M3/EtherCAT)–新代科技股份有限公司，擷取自: https://www.syntecclub.com/series.aspx?CategoryID=AutomaticProducts&SubCategoryID=DesktopAutomaticSolution&SeriesID=E2_1
[26] FC-SLSR–新代科技股份有限公司，擷取自: https://www.syntecclub.com/series.aspx?CategoryID=AutomaticProducts&SubCategoryID=AutomationSolution&SeriesID=E1_2
[27] Electro-pneumatic Regulator ITV1000/2000/3000，Available: https://content.smcetech.com/pdf/ITV_4017.pdf
[28] 真空發生器作動規格表及性能表，擷取自: http://chelicc.com/data/upload/image/20180903/1535961628665658.pdf
[29] Bruce R. Munson, Theodore H. Okiishi, Wade W. Huebsch, Alric P. Rothmayer, “Elementary Fluid Dynamics—The Bernoulli Equation,” in Fluid Mechanics, 7th ed., New York, NY, USA: Wiley, 2010, pp. 102.
[30] EasyCure-50H規格表，擷取自: http://www.sunwheel-inc.com/uv_351.html
[31] 氣缸系列-方銳氣動氣壓缸台灣製造，擷取自: https://www.fonray.com/DPC.html
[32] Bruce R. Munson, Theodore H. Okiishi, Wade W. Huebsch, Alric P. Rothmayer, “Different Analysis of Fluid Flow,” in Fluid Mechanics, 7th ed., New York, NY, USA: Wiley, 2010, pp. 326.
[33] 蔡明志，Python 程式設計大數據資料分析，碁峯資訊股份有限公司，台灣，2018。
[34] 應用產業3D列印學堂，普立得科技有限公司，擷取自：http://3dprinting.com.tw/app/products/cat/50