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May 8, 2014

Laser Sintering (LS / SLS) icon

Laser Sintering (LS)—often called Selective Laser Sintering or SLS—creates tough and geometrically intricate components using a high-powered CO2 laser to fuse or sinter powdered thermoplastics. One key advantage of LS 3D Printing is that as a part is made, it remains encased in powder. This eliminates the need for support structures and allows for complex geometries. LS production parts can be strong, water and air-tight, heat resistant, and made out of exceptional materials like aluminum-filled and glass-filled Nylon 12.

Benefits of LS


Consistency and Repeatability

To ensure consistent build quality, Stratasys Direct Manufacturing has implemented stringent, proprietary process controls and procedures for executing builds, maintaining equipment, and handling materials. We maintain strict parameters for material traceability by monitoring the mixing and testing of powder before builds, tracking the thermal process during the build, and conducting post-process tensile bar testing.

Production Parts

Producing parts for production applications without tooling saves time and money. LS has proven to be an affordable means to build durable, stable production parts in low quantities. It is also effective for high volumes of components when the designs are too complex for traditional manufacturing to execute.

Part Consolidation

Using LS, engineers can incorporate multiple component designs into single structures. With the ability to produce complex features, undercuts, and internal features with ease, LS can consolidate what once was a multi-part assembly into one part. LS can eliminate the need for separate fasteners, mounting components, and adhesives, resulting in substantial weight reduction compared to conventional assemblies.

LS Applications


LS is excellent for functional prototyping or production parts in a variety of taxing environments.

SLS production part
  • Common applications include:
  • Ductwork
  • Fuel tanks
  • Control surfaces
  • Flight-certified parts
  • Brackets, clips, clamps

Laser Sintering

The materials used for Laser Sintering include the speciality materials:

  • NyTek 1100B
  • Nylon HST
  • Nylon D80
  • PA 640-GSL
  • CastForm PS
  • Nylon EX
  • DuraForm HST

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