SLA (stereolithography) printing is a printing technique that falls under the bigger printing process called: Vat Polymerization. Photopolymerization is the process of a photopolymer resin being exposed to certain wavelengths of lights and because of that, the resin cures. Within SLA printing the machines use UV light to cure the resin. Compared to the more commonly known printing technique FDM-printing, SLA printing is a very precise and versatile printing technique and is used in many different industries. The wide range of resins nowadays makes that this technique can be used for different end goals. From design prototypes to fully personalized medical devices, a lot is possible with SLA printing. Next to the fact that there is wide variety of resins on the market, the printing quality is evidently better compared to FDM-printing. This is because the layer height of SLA printing varies from 0.025 mm to 0.3 mm. Where FDM-printing often has a layer height of 0.15 mm.
Here at FabLab we have FormLabs printers.