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 thermoset polymers that come in a liquid form.

Stereolithography was the world’s first 3D printing technology, invented in the 1980s, and is still one of the most popular technologies for professionals. SLA resin 3D printers use a laser to cure liquid resin into hardened plastic in a process called photopolymerization

Here is how the SLA fabrication process works: The liquid resin is solidified through a process called photopolymerization: during solidification, the monomer carbon chains that compose the liquid resin are activated by the light of the UV laser and become solid, creating strong unbreakable bonds between each other. The photopolymerization process is irreversible and there is no way to convert the SLA parts back to their liquid form: when heated, they will burn instead of melting. This is because the materials that are produced with SLA are made of thermoset polymers, as opposed to the thermoplastics that FDM uses.

Maximum build size 600 x 600 x 450mm
Standard lead time 4 business days
Dimensional accuracy +/- 0.5mm
Layer height 25-100 μm
Supports Required

Our ( SLA )
3D Printing


Benefits of Stereolithography 3D printing

  • chevron-right-24SLA parts have a very smooth surface finish
  • chevron-right-24Parts with very high dimensional accuracy
  • chevron-right-24Parts with intricate details
  • chevron-right-24Best for Functional prototyping, patterns
  • chevron-right-24High versatile material selection

Design Guidelines For ( SLA ) Stereolithography

Unsuggested minimum wall thickness 1.0mm
Supported wall thickness 0.5mm
Minimum feature size 0.2mm
Minimum hole diameter 0.5 μm
Minimum escape hole diameter 0.4mm

Fused Deposition Modeling Key Design Considerations

Supported walls - Walls that are connected to other structures on at least two sides,

Unsupported walls - Walls that are connected to the rest of the print on less than two sides, and are at a very high chance for warping or detaching from the print. These walls must be at least 1 mm thick recommended

Overhangs must be kept less than 1.0 mm in length and at least 19° from level.

Embossed details (including text) - Any features on the model that are raised slightly above the surfaces around them. These must be at least 0.1 mm in height

Engraved details (including text) - these details must be at least 0.4 mm wide and at least 0.4 mm thick (distance from surface of the model to recessed detail).

Connections-0.5mm clearance between moving parts., 0.2mm clearance for assembly connections. 0.1mm clearance will give a push or snug fit.

complex geometries
Strong and
durable components
High accuracy
and fine details