Stereolithography

What is it?

Stereolithography is a technique that allows you to realize single 3D objects, starting from digital data processed by a CAD/CAM software. Its main application is rapid prototyping which allows us to test physical objects before industrial production or to prepare models for casting molds or die casting. This process is divided into 4 parts:

1. Preparation of the work station
2. Build:
   • localization of the laser beam using an optical system;
   • polymerization of liquid epoxy resin: solid particles are obtained;
   • distancing of section using an elevator;
   • movement of the focusing plane: realization of a section;
   • coverage of the section with polymer through a precision system;
   • refocus of the laser and new handling charge of the work station;
3. Clean
4. Post-treatment:
   • exposure to Green Part’s UV light : firing of the blank work piece and completion of the polymerization
   • eventual surface finishing (removal of porosity with abrasives or varnishes)

Dimension of the machines

Skorpion Prototyping has several production sites in Italy and around the world and uses stereolithography machines of different sizes:

• 4 machines 250x250x250 mm
• 2 machines 350x 350x350 mm
• 1 machines 500x500x500 mm
• 2 machines 700x700x700 mm
• 2 machines 300x500x210 mm
• 1 machines 450x650x450 mm
• 1 machines 650x650x480 mm
• 1 machines giant size 2000x1000x1000 mm

Applicazioni

The stereolithography machines represent one of the solutions for the realization of:

• Conceptual models
• Aesthetic Models
• Test of assemblage
• Master for vacuum casting

Materials

The stereolithography machine produces parts using epoxy resins. Among these, our company uses the most innovative materials:

• RGX 2200: aesthetic models, rigid
• PLX 1500: PP-like
• TSK 2700: ABS-like - too transparent
• Nano5000: Loaded ceramic, rigid, resistant to high temperatures
• Bluestone: resistant to high temperatures
• Flex70: like rubber, 70 Shore A