Design and Development of Dual-Nozzle Biological 3D Printer Based on Pneumatic Extrusion
Aiming at the problem of biological 3D printing of heterogeneous tissues and organs in tissue engineering,a kind of dual-nozzle biological 3D printer based on pneumatic extrusion is proposed according to different printing process requirements of biological materials.The composition of biological 3D printer is introduced,and multi-axis motion system,printing platform with integrated positioner,UV curable printing head and control system are investigated.Through TracePro software,the ring size and irradiance of the UV curable printing head are simulated and verified.The dual-nozzle alternating printing test and bio-ink printing test are carried out on the biological 3D printer,which verifies that the designed biological 3D printer can meet the tech-nological requirements of the alternating printing of a variety of biological materials,and provide technical possibilities for the biological3Dprinting of heterogeneous tissue structures in tissue engineering.
Biological 3D PrintingTraceProAlternating PrintingBio-Ink
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