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Selective Laser Sintering (SLS) operates by using a high-powered laser to sinter the surface of a powder bed in a two-dimensional pattern, then applying another layer of powder to build up the part in the vertical direction. It has the ability to be used with a wide variety of materials and can produce fairly good resolution and surface finish. The strength is better than SLA, but slightly worse than traditional manufacturing methods. SLS is ideal for producing parts with a good surface finish that must still bear a mechanical load.
- Good surface finish
- Uniform strength
- Low speed
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