Italian researchers designed and built a3DPrinted structures composed of artificial pneumatic muscles that can expand and contract as needed. According to a report in Science Robotics magazine, it is a device made using a single printing process and consisting of18kind of differenceGRACE(an actuator that can retract and extend).
The creation of artificial muscles is one of the goals pursued in the field of robotics, because in nature, muscle tissue has complex characteristics, ranging from rapid and powerful contraction to small and precise changes in shape, which can be controlled flexibly and can also perform very flexible movements. Individual muscle fibers can only achieve contractions, but it is nevertheless their specific arrangement within the complex muscle structure that allows joint deformations such as flexion, twisting and oppositional movements.
△Italian researchers demonstrate the versatility of an actuator, a18kind of differenceGRACEThe compound pneumatic hand is manufactured using a single printing process. Image source: Italian Institute of Technology
The research team started with a single pneumatic actuator, this time trying to make a breakthrough. Each actuator can simply expand, extend and contract thanks to its geometry, similar to a pleated pin, including one that can be made with different materials and sizes.3DSeparate units for printing and manufacturing. MiscellaneousGRACEPrinted and assembled into complex structures to provide the type of movement required.
Researchers say thisGRACEThey can be made in different sizes, their deformation and strength properties can be changed, they can be made from a variety of materials and techniques, and they can even be integrated into the structure to be made.
Researchers use advertisements3DThe printer created a pneumatic hand in a single printing process and showedGRACEfeatures. The material used to print the pneumatic hand is a soft resin containing18of different sizes and shapesGRACEso you can bend your fingers, twist your palm, and rotate your wrist with just a few tenths of a Pascal of pressure. pneumatic hand weight100Gram, about the same size as a human hand.
New design allows the pneumatic hand to support more than itself1000times their weight, depending on the material they are made from. In fact, the force generated and the pressure required can be increased or decreased by using materials of different rigidities, by modifying the thickness of the membranes that make up these actuators, while maintaining the same contraction and extension properties.
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