Stereolithography 3D printing produces high accuracy and isotropic prototypes and parts in a range of materials.


  • Fine features and smooth surface finish
  • Detailed, watertight prototypes and parts
  • Selection of resins that replicate thermoplastic-like materials
  • Fast turnaround for small part production


  • Proof of concept and show models
  • Testing for form/fit and engineering verifications
  • Molding and high heat applications
  • Transparent covers and light pipes
  • Patterns for investment casting
  • Rapid tooling, jigs, and fixtures
How Stereolithography Works

Stereolithography belongs to the category of vat photopolymerizaton additive manufacturing, commonly know as resin 3D printing. SLA  uses a UV laser directed by a software-controlled mirror to cure photopolymer liquid resin layer-by-layer to form hardened plastic. Parts are built upside-down and the build platform rises out of the liquid resin reservoir as layers are constructed. After completion of the printing process, the part is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Any resin untouched by the laser remains in the reservoir and can be reused. Post-print curing enables parts to attain the highest possible strength and become more stable.

SLA parts have a high resolution and accuracy, sharp details, and a smooth surface finish. With a range of advanced materials, SLA 3D printing supplies the versatility for a broad range of applications including jigs and fixtures, end-use parts, and robust functional prototypes.

BUILD VOLUME: 145 x 145 x 175 mm (5.7 x 5.7 x 6.9 in)


Standard Clear, Black, White, Grey | High Temp | ToughDurableFlexibleCastable
Somos Watershed 11120 | Somos 18420 Protogen