Stereolithography (SLA) is an additive manufacturing process that belongs to the Vat Photopolymerization family. In SLA, an object is created by selectively curing a polymer resin layer-by-layer using an ultraviolet (UV) laser beam. The materials used in SLA are photosensitive polymers that come in a liquid form.

Why Choose SLA for your 3D Printing Project?

SLA is an excellent choice for rapid prototyping and project designs that require the production of very accurate and finely detailed parts. It’s ideal for producing show-and-tell parts to enable validation of concept ideas and ergonomic testing.

SLA capabilities

Requirement Specification
Maximum build Volume (Single Build) 600 x 600 x 400 mm
(Parts shall be split, Print separately and fused together to form much larger volumes)
Standard lead time 4-5 business days
Dimensional accuracy ± 0.2 mm
Layer height 50 -100 μm
Finish Very smooth surface finish

Materials

ABS – Like

  •  Excellent Surface Finish
  • Visual prototypes for photo shoots and market testing
  • Prototypes for limited functional testing
  • Low-volume production of complex geometries

ABS-Like Translucent/Clear

  • As build condition will be Translucent (50-60% transparency) Can be post processed to achieve 90-95% Transparency
  • Automotive Lighting components
  • Fluid flow visualization models
  • Prototypes for limited functional testing

Design guidelines for SLA

The table below summarizes the recommended and technically feasible values for the most common features encountered in 3D printed parts.

Feature Recommended size
Unsupported walls 0.8 mm
Supported walls 0.8 – 1.0 mm
Minimum feature size 1.0 mm
Minimum hole diameter 0.8 mm
Maximum wall thickness Solid parts must be Shelled/hollowed with minimum wall thickness and at least two escape holes for resin removal with a min. diameter of 8 mm.