SLA & DLP 3D Printers
Laser-based Stereolithography (SLA) and Digital Light Processing (DLP) 3D printing follow a similar photo lithography principle, yet produces significantly varying outputs.
Stereolithography in 3D printing draws solids with light. In case of SLA, the technology uses light by laser to turn liquid into resin into a solid object, one layer at a time, whereas in case of DLP, selective exposure to light is done via a projector. DLP 3D printers are restricted by pixel size but a laser SLA printer’s build volume is completely independent from the resolution of the print. A single SLA print can be any size and any resolution at any location within the build area.