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A resin vat is a container in Stereolithography (SLA) and Digital Light Processing (DLP) 3D printers that holds the UV-sensitive liquid resin. The vat’s bottom is clear, usually made from materials like FEP (fluorinated ethylene propylene) or PDMS (polydimethylsiloxane) film, letting UV light through to harden the resin layer by layer. As the resin cures, the printer’s platform moves up, shaping the object.
To get the best prints, users must keep the resin vat clean. This means changing or cleaning its bottom film if it gets cloudy or worn. After printing, the vat should be cleaned and the resin filtered, especially when changing resin types or colors. Because liquid resins can be dangerous, always handle them with care and wear protective gear when working with them.