Table 2.

Summary of the advantages and disadvantages of different 3D printing technologies.

3D printing technology	Material types	Advantages	Disadvantages
DIW	Liquid inks	Low cost and easy construction; Applicability of multi-material printing	Relatively low printing speed and resolution; Difficult to control the viscosity of ink
SLA/DLP	Liquid photosensitive polymers	High resolution and rapid prototyping	Limited materials and complex devices; Material waste
FDM	Filaments	Low cost and simple operation;	Low resolution and slow print speed; Need high temperature processing
SLS	powders	Wide selection of materials; Good mechanical properties	Complex devices and shrinkage after cooling