Development of a Robotic Arm Based Hydrogel Additive Manufacturing System for In-Situ Printing
AbstractIn-situ printing is a promising injury repair technique that can be directly applied during surgical operations. This paper features a potential in-situ printing platform based on a small-scale robotic arm with a micro-sized dispenser valve. A double-light-source curing method was applied to print poly(ethylene glycol) diacrylate (PEGDA) with a 20% (weight/volume) ratio and the entire process was controlled automatically by a computer interface where droplet diameter, curing time, mechanical properties were measured and essential printing parameters (e.g., nozzle velocity, nozzle frequency) were determined. Three different two-dimensional (2D) plane models (namely, square, circular, and heart-shaped) were printed during initial printing trials. The feasibility study of in-situ printing on curved surfaces was tested using a three-dimensional (3D) printed defect model. The defect was successfully filled using both parallel and ring printing paths. In conclusion, the robotic arm printing platform and its forming method can achieve a rapid curing of PEGDA hydrogel on a curved surface and has the potential to be applied to in-situ printing. View Full-Text
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Li, X.; Lian, Q.; Li, D.; Xin, H.; Jia, S. Development of a Robotic Arm Based Hydrogel Additive Manufacturing System for In-Situ Printing. Appl. Sci. 2017, 7, 73.
Li X, Lian Q, Li D, Xin H, Jia S. Development of a Robotic Arm Based Hydrogel Additive Manufacturing System for In-Situ Printing. Applied Sciences. 2017; 7(1):73.Chicago/Turabian Style
Li, Xiao; Lian, Qin; Li, Dichen; Xin, Hua; Jia, Shuhai. 2017. "Development of a Robotic Arm Based Hydrogel Additive Manufacturing System for In-Situ Printing." Appl. Sci. 7, no. 1: 73.
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