Process
SLA
Also known as: sla · estereolitografia · estereolitografía · stereolithography · laser resina
Short definition
SLA is the resin printing technology that traces each layer with a focused ultraviolet laser point by point, instead of projecting the whole layer at once.
Full definition
It was the first additive manufacturing technology and remains the precision reference for professional equipment. Because the layer is drawn with a moving laser point, time depends on how much area has to be traced, so filling the platform does lengthen the print, unlike MSLA. In exchange, edge quality does not depend on a pixel grid. On the desktop it has been almost entirely displaced by MSLA for a cost reason: an LCD screen is far cheaper than a laser and galvanometer assembly.
Related terms
- MSLAMSLA is the resin printing technology that uses an LCD screen as a mask to cure an entire layer at once with ultraviolet light.
- Resin3D printing resin is a photopolymer liquid that solidifies when it receives ultraviolet light, normally at a 405 nanometre wavelength.
- SLSSLS is the technology that builds parts by laser-fusing successive layers of powder, usually polyamide, with no need for supports.
Process
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