Shared fast copier self-copier printer solution development Smart copier hardware solution provider 3D printer (SLA) Light curing (SLA) is a high-speed, high-precision 3D printing technology. Use UV lasers and liquid UV-curable photopolymers-"photosensitive resins" to print parts. The laser beam is controlled to scan on the liquid surface of the resin, and the liquid surface of the resin is cured to form a layer film of the cross section of the scanned part. After curing one layer, cover the layer film just formed with another layer of liquid resin, and continue to scan to make it solidify and bond to the cross section of the previously formed part. Such reciprocating, growing layer by layer, so as to print out complete three-dimensional parts.