SLS ‘SELECTIVE LASER SINTERING’

Selective Laser Sintering (SLS) is an additive manufacturing process that builds parts by using a laser to selectively sinter (heat and fuse) a plastic powdered material. The process begins with a 3D CAD file, which is mathematically sliced into 2D cross sections. With the base platform at the top of the build volume, a blade pushes powder material from the powder supply to create a uniform layer over the build piston. The laser system then draws the 2D cross section on the surface of the build material, sintering the material. The base platform is lowered and the blade sweeps a new layer of material on top of the previous layer. The next 2D cross section is drawn (which connects to the previous layer) and the process repeats itself until the object is complete.

This layer-by-layer manufacturing process allows for the direct fabrication of complex parts that would be cost-prohibitive, if not impossible, to produce through traditional manufacturing processes. For example, interior features, undercuts and negative draft are not an issue for SLS fabrication. Because the SLS parts are built in a bed of powder they do not require any support structures. This gives the ability to create assemblies that are printed as one single object. Another benefit of process is the ability to use the product immediately after cooling with minimal post production input.

Attributes / Applications

  • Plastic, Tough, functional, flexible prototype models
  • Versatile applications 
  • Fully functioning assemblies
  • 0.1mm layers
  • High temperature resistant (up to 150°C)
  • Suitable for snap fits/ living hinges
  • Can be coloured
  • PS 2200 material data
  • Build envelope  19omm x 240mm x 300mm

Before you get your files printed

  • Prepare an STL File (STereoLithography)
  • Allow 4-5 days lead time
  • Quoting will only be given when we have looked at the object in software

Useful resources:

List of free and commercial 3D Modeling software to use for specific requirements, click here.
3D Designing for SLS A-Z of 3D printing resources, click here.