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From the knowledges of 3D printing service to specific order-related issues, find answers that can help you accelerate your innovation with 3DSPRO's comprehensive FAQs session.

Why does SLM need supports?

In SLM 3D printing, supports are necessary for several reasons:

Overhangs and Complex Geometries: Supports provide stability for features that overhang or extend out beyond 45 degrees, which would otherwise be impossible to build up from the powder bed alone.

Heat Dissipation: They help dissipate heat during the printing process, reducing thermal stresses that can cause warping or distortions in the final part.

Anchoring: Supports anchoring the part to the build platform, ensuring it remains fixed in place and does not shift during the high-energy laser melting process.

Preventing Collapse: For intricate designs with internal cavities or thin walls, supports prevent the structure from collapsing during the build.

While necessary, supports do increase the material usage and require additional post-processing to remove, which can affect the overall cost and surface finish of the printed part.

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