Selective Laser Sintering (SLS)

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Selective Laser Sintering (SLS)

Selective laser sintering (SLS) is a 3D-printing method which spreads a fine powder  to a printing chamber using a recoating mechanism and then melts it selectively using a high power laser. SLS is mainly used for the production of industrial grade parts. Jigs, fixtures, prototypes, consumer products, scale models. This method is very suitable for serial production of end-use parts.

Technical specs:

  • Printing dimensions: 330 mm x 330 mm x 620 mm
  • Layer thickness: 0.1 mm, 0.12 mm and 0.15mm

Benefits of Selective Laser Sintering

Selective laser sintering has many technical benefits. Good part quality and strength can be achieved. Printing very complex structures is not an issue as the powder used in building the parts is self supporting therefore very few limits exist with geometries. The parts can also be stacked on top of each other and the full print volume can be taken the benefit of.

The great thing about Laser Sintering is in the economies of scale. The printer can always print a bucket full of parts and by doing multiple parts the cost per part gets cheaper. For you this means that the way of getting the full benefit for your parts we do the printing and combine it with the rest of our customers. This way you get the best cost per part and still the same quality. We process multiple orders from several customers and get the best production efficiency out of the machines. We also offer quantity discounts as your portion of the build gets bigger we reward you with a cheaper price!

SLS-technology is a very cost efficient and speedy technology for manufacturing products and ideas. In addition you can easily modify your designs and print multiple variations in a single build and get them all at the same time! Think about that for prototyping: fast and efficient!


3D-Printing with SLS-method

SLS involves the use of a high power laser typically a carbon dioxide laser to fuse small particles of plastic powders into a mass that has a desired three-dimensional shape. The laser selectively fuses powdered material by scanning cross-sections generated from a 3D-file on the surface of a powder bed. After each cross-section is scanned, the powder bed is lowered by one layer thickness, a new layer of material is applied on top, and the process is repeated until the build is completed. A single build can contain hundreds or thousands of parts. For the designer to take full benefit of the way SLS works it is often best to design parts that have features that are stackable. This way the maximum ammount of space can be taken benefit of in the printing process. Combination of big and small works well too!

Example of a SLS-Build. Almost 2000 parts! Big and small.

Process Video


We use good old German EOS made machines. The industry standard for SLS!


Read more:

>> Stereolithography (SLA)
>> Direct Metal Laser Sintering (DMLS)


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