SLA (Stereolithography) and DLP (Digital Light Processing) are two different technologies used in resin 3D printing.
SLA uses a laser directed by a galvanometer to cure the resin. The laser can be moved anywhere along the x and y axes, allowing for precise shaping of the printed object. SLA is known for its high precision and is often used for applications that require fine details.
On the other hand, DLP uses a projector to shine UV light onto a tank containing the resin. The UV light is redirected by tiny mirrors to turn each pixel on or off, creating the desired shape. DLP is generally faster than SLA, especially when printing larger parts or multiple parts at once.
Both SLA and DLP technologies require post-processing steps, such as cleaning the printed object to remove excess resin and post-curing to fully cure the resin.
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