Using light to 3D print liquid resins isn’t new, but researchers at the University of Texas at Austin are taking it further. They’re experimenting with a resin that reacts differently depending on the light wavelength used for curing.
Inspired by natural structures like bone and cartilage, this innovative resin can become either a flexible rubbery material with violet light or a stiff material with ultraviolet light. Many of their test prints mimic biological materials.
One major advantage of this resin is that the materials bond well together. This reduces the risk of layers peeling apart. By simply adjusting the light frequency, you can fine-tune the material’s properties.
Interestingly, there’s still some uncertainty about whether a part can switch from rubbery to hard after curing under different conditions, like sunlight. This research has been published in Nature Materials. If you’re interested but can’t access it, local libraries or universities might have it available.
This technique could be beneficial for various applications, including creating custom medical devices or specialized engineering components. In terms of trends, the push for more bio-inspired materials is growing, as seen in recent innovations across the field. According to a survey by Wohlers Associates, the 3D printing market surpassed $15 billion in 2022 and is expected to grow significantly as new technologies emerge.
In a world where customization is increasingly important, this dual-material approach could revolutionize how we think about 3D printing. Whether for personal projects or commercial use, there’s no doubt that light-based printing techniques are paving the way for exciting developments.
For those curious about 3D printing, incorporating different materials and light wavelengths reflects a future where manufacturing is more adaptable and versatile.