SLA is a 3D printing process that dimensionally settles the curing of a photoactive liquid resin. The SLA process uses a scanning laser causing a chemical reaction that converts it into a crosslinked solid.

SLA 3D printer could print very high surface quality parts resembling that of injection molding with all the small features are visible. Resolution quality depends upon the SLA printer specification like laser spot size and resin quality.

Below are design guidelines generally applied for the SLA 3D printing process. These guidelines will help the designer to create parts that will result in a successful print.

Minimum supported wall thickness

Walls with supports are joined with other walls or shape at least two sides. Minimum thickens of 0.4 mm is recommended.