What is the primary purpose of structural supports in 3D printing?

The primary purpose of structural supports in 3D printing is to stabilize complex model geometries. In additive manufacturing, particularly with methods like Fused Deposition Modeling (FDM) or Stereolithography (SLA), intricate designs with overhangs or gaps can pose a challenge during the printing process. Without adequate support structures, these features may sag, warp, or fail entirely due to the inability to maintain the required shape as the material is deposited or cured.

Supports act as temporary scaffolding that holds up overhanging elements, allowing the printer to properly lay down material without obstruction. They are typically designed to be easily removable after the print is complete, which ensures that the final product retains the desired shape and structural integrity. This functionality is crucial for the successful realization of complex designs and is a fundamental aspect of achieving high-quality prints in 3D manufacturing.