4D printing explained: How it differs from 3D printing and where it could go next
SMRTR summary
4D printing builds on standard 3D printing by using smart, responsive materials that change shape when exposed to heat, water, light, or other triggers. First popularized in 2013, the technology shows promise in medicine, robotics, and aerospace, but remains mostly in labs due to challenges with durability and scalability.
SMRTR provides this summary for quick context. The original article belongs to Interesting Engineering.
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