4D printing will become the continuation of 3D printing in which an additional ‘time’ dimension will get added in combination with the other 3 dimensions, which are already present and getting used in 3D printing.
The main concept of this technology is that the object which is printed in 3D is capable of transforming into different shapes with time and so, this way, it gets its predetermined shape. After all many researches have been done and are still happening in the field of 3D printing due to which we can say that 3D printing is a big step in revolutionizing the Manufacturing world.