| Summary: | 碩士 === 國立臺灣科技大學 === 自動化及控制研究所 === 105 === A traditional additive manufacturing (AM) system is composed of 3D digital design technology, chromatics, material jetting, material science, digital manufacturing and intelligent control of a mechatronics system. In short, the light-cured additive manufacturing system is combined with printed side, photosensitive resin curing module, axial control and encoder feedback. However, there are plenty of disadvantages in such a system such as uneven size of droplet, unstable printing process and low quality of end product, which may cause damage of piezoelectric heads and module.
The main purpose of this study is to develop a Material Jetting (MJ)-based high color performance 3D printing system by using multiple piezoelectric heads, optimizing sub-system parameter, designing a stable module and setting monitoring system. First of all, capability of printing five different colors (CMYKW) and ultraviolet (UV) curable support material were studied. The waveform editing and printing program planning were integrated to maximize the performance of print modules. The integration of color mixing, piezo material process, CMYKWS curable process and multi-inkjet head control have been carried out in the system. The establishment of continuous ink supply system, pressure system and waste removal system are utilized to maintain a stable printing. Increased ink volume design and print mode development allow a more efficient printing.
The experimental results show that this material jetting based color 3D printing system could achieve both high resolution of 600dpi and more than 256 colors. This study conforms to the future development trend and market demand on color 3D additive manufacturing industry.
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