Innovative 3D printing technology - New system uses light as a precision actuator
From everyday objects to artificial fiber-type muscles for robotic actuation, an innovative 3D printing technology based on photopolymerization is playing a role in revolutionizing the way we create, representing a fundamental shift from traditional methods and transforming industries and everyday life.
Unlike conventional layer-by-layer material deposition, the new technology uses light as a precise activator. The process begins with the introduction of liquid photopolymer resin that hardens instantly when exposed to targeted ultraviolet (UV) light, which acts as an “on-off switch” for the formation of the material.
Unlike traditional drying methods that rely on heat and air, UV drying uses specific wavelengths of UV light to achieve rapid and controlled polymerization.
This enables the material to achieve desired mechanical properties in a much shorter time than other methods can require -- 20 to 100 times faster than traditional 3D printing -- allowing complete products to be created in just two to three hours.
At PollyPolymer -- a high-tech enterprise specializing in ultra-high-speed 3D printing technology based in Suzhou City, Jiangsu Province, east China, the technique has been used to produce customized components, such as elastomeric artificial muscles for robots that combine flexibility with durability.
"This material can provide shock absorption and protection. In addition, due to its hollow mesh structure, it can dissipate heat. Of course, another advantage is its lightweight nature, as it is filled with many meshes within the same structure," said Wang Wenbin, the company's CEO.
Most importantly, these materials can be pre-programmed and engineered to meet specific structural, elastic, and mechanical performance requirements, enabling on-demand and customized manufacturing in many industries.
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