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The origins of 4D printing are in the introduction of a time factor to 3D printing.

It consists of creating three-dimensional objects that adapt to the circumstances of each moment without the intervention of robots or people, only combining materials and geometry with interactions, an energy source and intelligent design.

Advantages:

1. Dynamic Functionality: By creating adaptive structures beyond the capabilities of traditional 3D printing.
2. Material Efficiency: By reducing wastages.
3. Complex Design fabrication: Stereo lithography 4D technique fabricates complex designs efficiently.

4D printing is destined to revolutionise the industry. These are some of its possible achievements:

Construction, military, healthcare, and manufacturing are the forefront industries exploring the 4D space.

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