Stereolithography (SLA^®) is an additive fabrication method used to produce concept models, prototypes and patterns.  In some cases, SLA can also be used to create production parts in very small quantities.

SLA is the oldest additive fabrication technology and remains the benchmark for providing high accuracy, fine detail and surface finish.  Highly complex geometries can be achieved because of the additive process of producing parts.

The two key components of the SLA process are a UV laser and a vat of photopolymer resin in liquid form.  Based on data in a CAD model, computer software directs the laser to trace a cross-section pattern across the top of the resin.  This interaction between the laser and the resin causes the liquid resin to cure, producing the first layer of the part.  Once this first layer is complete, the machine's elevator platform drops by one layer thickness and repeats the process one layer at a time until the full part is completed.

Highlights of the Stereolithography process include:

• Ability to produce complex geometries
• Fine detail and accuracy
• Wide variety of material options
• Painting and finishing available for presentation purpose
• Good for form/fit applications (snap fit, etc)
• Speed (delivery in 2-3 days)