| Summary: | 碩士 === 國立臺灣科技大學 === 機械工程系 === 107 === This thesis is a study on the large-area high-speed printing of bottom-exposure 3D printing system. The purpose of this paper is to find the selection of the resin tank type, the effect of Z-axis moving speed and the print area size on separation force and print quality in the large-area high-speed photocuring 3D printing technology, and classify the type and proportion of separation force in large area printing.
The resin tank used in this study uses silicone as the main material, and a free radical scooping agent is added to make a stripping film, which can effectively reduce the separation force generated in the down-light photocuring 3D printing, and the separation force is affected. The key to printing quality and printing speed. In this study, we first discuss the separation force of tension-type and hard-bottom resin tanks under large-area printing conditions, and then discuss the separation force of general silicone film and film under large-area printing conditions. Finally, we will print on large areas. Under the condition, the influence of different Z-axis moving speed and printing area on the separation force, and find the suitable trend and direction of large-area high-speed printing parameters.
In the end of the study, it was found that the film tension type resin groove is the most suitable for large-area high-speed printing. Compared with the conventional film tension type resin groove, the separation force is reduced by 86.2%, and the Z-axis moving speed, printing area and separation are achieved. The relationship between the forces, the parameter adjustment trend suitable for large-area high-speed printing, and the comparison of the size and proportion of the three separation forces under the condition of large-area high-speed printing, providing a solution to the problem of printing in a larger area in the future. In order to break through the bottleneck of current photo-curing 3D printing.
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