(Sometimes resin 3D printing in general can be referred to as SLA 3D printing, although it may cause ambiguity.)ĭLP (Digital Light Processing) technology uses a digital light projector screen as a light source. The method provides high quality prints but the downside of that is the trade-off in speed. SLA employs the UV laser to “draw” each layer of the future model. The difference lies in the source of UV light used for polymerization. Like the other vat polymerization technologies, this one cures photosensitive resin, layer by layer, to print a 3D object. We’ve already mentioned that the first 3D printing technology was SLA (Stereolithography Apparatus) invented and patented by Chuck Hull in 1986. Vat polymerization comes in three main types which are SLA, DLP, and LCD (or MSLA). As the name suggests, it’s the process of turning a liquid polymer into a solid object under UV light exposure. Read on to learn about the most notable models and their peculiarities, as well as the applications of SLA printing and the criteria to be taken into account when choosing such equipment.īefore we get to discussing specific models and their pros and cons, let’s have a brief look at the technology called vat photopolymerization. This is Top 3D Shop, and in this article, we are going to tell you about large resin 3D printers. As a result, now the market offers a variety of options for printing in photosensitive resins, with multiple smart features and build volumes for different purposes. Since then, there’ve been developed plenty of other methods like FDM and SLS on the other hand, the popularity of stereolithography technology drastically increased when resin 3D printers became much more affordable and advanced. Veterans of additive manufacturing know that the first 3D printing technology to appear was stereolithography - it was as far back as 1986.
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