1 Affordability
: Since 3D printing uses only the required material and needs no tooling, it is one of the most affordable manufacturing processes for one-off parts or small batches.

2 geometries: 
trongse 3D printers create parts layer by layer using a computer-controlled nozzle, they can be used to create highly complex shapes, including complex interior geometries.

3 Efficiency
: Once a part has been designed using CAD software, it can be printed in a matter of hours, without a lengthy setup procedure.

4 Adaptability: 
Because 3D printed parts require no tooling, there is less risk involved when creating a part. If a fault is discovered after printing, it can be amended digitally without the need to replace expensive tooling.

5 Environmental factors
: Although 3D printers require power to operate, there is generally no material wastage involved. Subtractive processes like machining, on the other hand, produce waste material.