SLA 3D Printer is a 3D printing device based on the principle of stereolithography (SLA). SLA stands for "Stereo Lithography Apparatus", which refers to the stereolithography process—a crucial technique in 3D printing.

This technology uses a laser beam of specific intensity to precisely cure photopolymer resin layer by layer. The laser selectively solidifies the liquid resin, tracing patterns point-by-point, line-by-line, until an entire layer is completed. The build platform then moves, allowing the next layer to be formed. This process repeats until the final 3D-printed object is fully fabricated.