What role does support structure play in additive manufacturing?

Support structures in additive manufacturing are crucial for maintaining the integrity of the part throughout the building process. During the additive manufacturing process, particularly with technologies like Fused Deposition Modeling (FDM) or Stereolithography (SLA), certain geometries may have overhangs or complex features that cannot be printed without support.

Support structures act as scaffolding, providing the necessary stability and foundation for these features to be successfully deposited layer by layer. Without this support, the material may droop or collapse under its weight as it is added, leading to defects or failures in the part. Once the printing is complete, the support material can typically be removed, revealing the finished part with all its intended geometric attributes. This role of stabilization is essential for achieving high-quality, functional parts in additive manufacturing, making it a critical aspect of the overall process.