SLA / MSLA

SLA (Stereolithography) / MSLA (Masked Stereolithography)

SLA (Stereolithography) and MSLA (Masked Stereolithography) are among the most precise commercial 3D printing technologies, where the level of detail reaches tens of μm. Thanks to the wide variability of material properties, they are equally well used in industries as in design or art. These technologies are known for their ability to achieve extremely high levels of detail and smooth surfaces even at sizes of 1-2 meters.

SLA / MSLA Process

The core of the technology is UV light, which is used to gradually cure (polymerize) photosensitive polymers (resin). By focusing the radiation on a specific point, a layer of cured polymer is formed. In SLA, the light source is a laser, while in MSLA, it is masked LED light.

Advantages of SLA/MSLA technology:

• High level of detail – Both technologies allow for the creation of objects with exceptionally fine details, ideal for prototypes, models, and complex geometries.
• Smooth surfaces – Printed objects have smooth and even surfaces.
• Wide range of materials – There are numerous photopolymers with various properties, including flexible, transparent, or biocompatible materials, suitable for different industrial applications.

Common uses:

• Rapid prototyping – Provides high precision and detailed prints, making it ideal for rapid prototyping, where quick and accurate design verification is necessary, for example, before creating an injection mold.
• Small batch production – Small electronic or automotive components.
• Architectural models – For architects and designers, the ability to create precise and detailed models of buildings and urban designs is crucial.
• Tabletop games and hobby models – Due to its level of detail, these technologies are often used by makers and modelers. Gamers print figures for games like Warhammer 40K or Dungeons and Dragons.

Materiáls for SLA/MSLA

ONYX Rigid Pro, Clear, Tough 2000, Rigid 10k

Fun Fact

SLA and DLP technologies can create objects with such high precision that their details are comparable to the resolution of modern digital cameras. For example, these technologies are used to create detailed miniatures, where individual layers can be printed as thin as 25 microns, which is about a quarter of the thickness of a human hair. This allows for incredibly fine details that are almost imperceptible to the naked eye.