Strong, support-free nylon parts for engineering, production, and functional applications. SLS is the professional's choice for reliable, isotropic parts without post-processing headaches.
Browse All SLS Services →SLS (Selective Laser Sintering) uses a high-powered laser to fuse powdered nylon or composite material layer by layer. Unlike FDM and SLA, SLS requires no support structures — the surrounding powder supports the part during printing. This allows for complex geometries, interlocking assemblies, and internal channels that are impossible with other technologies.
SLS parts have excellent mechanical properties in all directions (isotropic), making them suitable for functional end-use applications, not just prototypes.
Test form, fit, and function with parts that behave like production components — not just visual models.
Low-to-medium volume production of functional components without expensive injection mold tooling.
Print interlocking parts, snap fits, living hinges, and assemblies that can't be made with support-dependent processes.
Ducting, brackets, housings, and under-hood components that need chemical resistance and thermal stability.
Biocompatible PA12 is used for orthotic devices, prosthetic components, and custom medical tools.
Footwear, wearables, and consumer goods benefit from SLS's ability to produce flexible and rigid parts in one build.
SLS produces parts with superior mechanical properties compared to FDM and much larger build volumes than SLA. The trade-off is higher cost per part and that SLS is only available at professional service bureaus — you won't find it at a typical makerspace. For metal parts, see metal 3D printing.
Browse 120+ SLS print bureaus across the United States.
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