Digital Light Processing


  • Fast build times
  • High surface finish and details


  • Large items may need lots of support
  • Models may show slight surface texture due to pixels in the screen

How it works

Digital Light Processing (DLP) uses a light source (either a high-resolution UV screen or a projector) to project a 2D profile of the parts, layer by layer, through a transparent tank into a liquid photopolymer resin. Compared to SLA, DLP cures the entire profile of the build at once rather than the laser drawing out the layer making for a faster print time.

Additional Considerations

  • Similarly to SLA, support removal can leave behind small artifacts.
  • Materials also vary between manufacturers and range from rigid prototyping to robust engineering resins.
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