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SLA: Stereolithography

Stereolithography (SLA) is a vat polymerization 3D printing process and is the original 3D printing process that is still widely used today for its accuracy and speed. SLA is often used for prototypes, large concept models, and lightweight display models. 

Our Stereolithography machines can create high dimensional accuracy parts with intricate designs and smooth surfaces. It also allows us to print watertight components in clear materials making it easy to test fluid flow found in product designs.

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Technical Information

  • Build Area 800 × 800 × 600 mm (31.50 × 31.50 × 23.62 in.)
  • Ideal for functional prototypes as well as end-use parts in a variety of complex geometries
  • Materials available: Somos Evolve & WaterShed Clear
  • High throughput volume printing for demanding industries

Frequently Asked Questions

No. SLA prints in one resin at a time. However, parts can be painted, dyed, or coated after printing. If you are after multi-material and colour, PolyJet is your best bet.

SLA parts are less strong and more brittle than thermoplastic parts, but resins can simulate some mechanical properties.

SLA can produce smooth, detailed patterns that burn out cleanly in investment casting, making it ideal for tooling and moldmaking.

Yes. With specific transparent resins, SLA can create optical-quality clear parts after polishing or coating.

It sure is! SLA delivers ultra-smooth surfaces and fine details, it’s perfect for prototypes that need to look close to final products, such as consumer goods, packaging, or industrial design models.

SLA: best for large, smooth, and accurate parts

PolyJet: best for multi-material, full-colour, or rubber-like models