Scientists have achieved a major breakthrough in robotics by creating a highly human-like robotic hand using 3D printing technology. This innovative approach involves cross-layering up to four plastics, including a mixture of hard and soft materials, resulting in a firm but flexible robotic part that can scale effectively. Unlike previous soft robots, this design maintains its physical properties at larger sizes, making it more versatile and durable. Although not yet suitable for creating lifelike androids, this technology has the potential to enhance safety in automated industries and improve human-robot interactions, particularly in situations where robots work alongside humans.

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The researchers' technique, known as vision-controlled jetting (VCJ), opens up possibilities for soft robots that are less prone to causing harm when operating near humans and are better suited for handling delicate objects. Traditional metal robots lack the flexibility and intricate internal structures needed for complex movements, and they can lead to medical issues when used inside the human body. To address these limitations, the scientists have developed a way to 3D print slow-curing plastics, resulting in more durable and elastic components that mimic the biomechanics of nature. This advancement has the potential to revolutionize the field of robotics, making robots more adaptable and safer for various applications.