Question

What is the technique used for fabricating physical objects using the data from a CAD drawing or virtual 3D model and additive manufacturing technology?

1) Subtractive manufacturing
2) Injection molding
3) 3D printing
4) Casting

Answer 1

The fabricating technique that creates physical objects from a CAD drawing or virtual 3D model by adding material layer by layer is known as 3D printing.

Step-by-step explanation:

The technique used for fabricating physical objects from a CAD drawing or a virtual 3D model using additive manufacturing technology is known as 3D printing. This process builds up the object layer by layer, using materials like plastics, metals, or even living cells in some cases of biomedical applications. Unlike subtractive manufacturing, which removes material to create an object, or injection molding and casting where material is added into a mold, 3D printing is entirely additive, and complex shapes can be created with high precision.