Stereolithography or SLA® is the most well-known original process to obtain physical models from a 3D digital definition. Stereolithography enables the manufacturing of accurate prototypes and complex forms from photosensitive resins.

There are multiple applications:

  • Validating a design

  • Testing ergonomics

  • Marketing presentations

  • Master models for vacuum casting

  • Model for bellows

  • USP VI medical applications


Download the table comparing Technologies and Materials – Plastics

18420 ProtoGen™







Watershed® 11122 XC

  • Transparent resin
  • USP Class VI following a biomed procedure (please contact us)
  • Good resistance to water, low moisture regain
  • Used for transparent parts
  • Finishing 0 = sand, opaque
  • Finishing 1 = translucent but with visible streaks
  • Finishing 3 = transparent
  • Technical Sheet Watershed 11122XC


  • Flexible white resin
  • High shock resistance
  • Used especially for hinges or clips
  • Technical sheet Next

Accura®25 SL


Before printing, a 3D digital file is obtained via CAD software. This file, in STL format, is transmitted to the machine where a second software cuts a model in several layers of material with a fixed thickness.

Laser process

The model is formed of successive layers of photosensitive epoxy resin under the action of an ultraviolet laser. The laser beam sweeps the surface of liquid resin depending on the 3D digital model transmitted to the “printer”. Once one layer of the material has solidified, the platform drops to the value of the thickness of the following layer and a new section is solidified. In this way, there are as many cycles as necessary layers so as to obtain the full volume of the part.

Manufacturing cycle

  • Polymerization of the layer (the resin hardens)
  • Lowering of the platform, equal to the thickness of a layer (e.g.: -0.15mm)
  • Re-coating = Applying an even layer of resin on the entire work surface
  • Polymerization
  • Repeat…


  • 2 SLA 5000 3D SYSTEMS® machines – capacity 500 x 500 x 600 mm

  • 1 SLA 250 3D SYSTEMS® machine – capacity 250 x 250 x 250 mm

  • 1 ProX™ 800 3D SYSTEMS® machine – 650 x 750 x 550 mm
  • 2 EOS® 400 SX machines – capacity 400 x 400 x 300 mm

  • 1 PRODWAYS ProMaker L5000 machine – capacity 400 x 330 x 400 mm

  • Download the composition of our production facility


  • Technological intelligence

  • Professionals on hand

  • Technical expertise

  • Submission of proposals

  • ISO 9001 Certification



  • 28,000 parts produced in 2014