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哈佛大学顶刊发布“七十二变”软体机器手,提出旋转多材料3D打印新方法
机器人大讲堂· 2026-02-15 09:09
Core Viewpoint - The article discusses a breakthrough in soft robotics manufacturing through a new technique called Rotational Multi-Material 3D Printing (RM-3DP), which allows for the creation of complex, programmable soft robots with capabilities akin to "72 transformations" [1][2][5]. Group 1: Manufacturing Technique - RM-3DP enables the direct printing of intricate pneumatic networks within soft robots, akin to implanting programmable "blood vessels" and "muscles" [2]. - The technique utilizes a specially designed 3D printing nozzle and two types of inks, including a temperature-sensitive gel that supports structures during printing and can be washed away post-manufacturing to create hollow pneumatic channels [6][7][8]. - The internal channels are designed asymmetrically, allowing for controlled bending and movement when inflated, enhancing the robot's functionality [10][11]. Group 2: Programming Capabilities - The RM-3DP technology allows for dynamic programming of the internal channel's direction, shape, and size during the printing process, enabling unprecedented complexity in soft robot designs [12]. - Various complex deformation patterns can be achieved, such as periodic bending and spiral twisting, demonstrating the method's predictability and reliability [13][15]. - The ability to create localized hinges and patterned actuators further showcases the versatility of the RM-3DP technique in developing soft structures [16][17]. Group 3: Application Demonstrations - The research team successfully printed a soft robotic hand capable of independent finger movements, showcasing the practical application of the RM-3DP method [23]. - The hand was demonstrated to perform a grasping action, highlighting its potential for real-world applications in robotics [25]. - The integration of algorithmic path planning with RM-3DP allows for the rapid transformation of complex biomimetic designs into functional robots, paving the way for future advancements in soft robotics [25].