Stereolithographie (SLA)

With stereolithographic (SLA) are very fine structures and smooth surfaces possible. Albeit support structures are still necessary. Under exposure of light disctinct parts of UV polimerize UV-hardening resin, layer by layer. The object is being pulled from a liquid bath.

.This process is the oldest 3d-printing process, which was invented by Chuck Hull 1983. Chuck Hull later founded 3D Systems.

The process time is with SLA longer, by comparison and occasionaly more cost intensvie as with FDM or SLS. On one hand SLA offers low manufactioning variance, on the other hand lower stability as the other procedurs. Resolution precision in Z are around 0,050 mm – 0,0150 mm.
 
Graphic © fabb.one Ltd.