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All You Need to Know About Resin and SLA 3D Printing

different resin 3d printing like sla, dlp,msla

SLA also called as, Stereolithography, is one of the most popular families of 3D printing technologies. It offers precise, detailed and high-quality results, making it a popular choice in many industrial sectors, such as jewelry, dentistry and rapid prototyping. In this article, we’ll explore in detail how resin 3D printing works and its applications.

Introduction to Resin 3D Printing

Resin 3D printing uses a Different type of liquid called photosensitive/standard resin, which solidifies when exposed to UV radiation. This technology divide into major three categories: SLA, DLP and MSLA, which are distinguished by the light source used and the method of shaping this light.

SLA (Stereolithography) Stereolithography, also called as SLA, stands out as a groundbreaking technology within the realm of additive manufacturing, specifically belonging to the Vat Photopolymerization category. It's acknowledged globally for its exceptional precision and versatility in 3D printing.

SLA functions through a method known as photopolymerization, wherein a laser or similar light source is employed to selectively solidify liquid resin into structured objects layer by layer, adhering closely to a digitally rendered design. This process yields remarkably detailed, complex, and precise 3D prints.

SLA (Stereolithography) 3d printing

DLP (Digital Light Processing) DLP 3d printing was created and patented by Texas Instruments for projectors. DLP 3D printers use a different project to project UV light onto the resin tank. The UV light is redirected by small mirrors to turn each pixel on or off, enabling selective polymerization of the resin.

DLP (Digital Light Processing) 3d printing

MSLA (Masked Stereolithography Apparatuses) MSLA uses an LCD screen to mask the UV light source. By switching each one pixel on and off, the LCD screen acts as a arrangement capable of creating 2D shapes to allow the UV light to pass through and restorative the resin.

MSLA (Masked Stereolithography Apparatuses) 3D Printing

Post-Processing Steps for Resin 3D Printing

Following the completion of a resin 3D printing session, standard post-printing procedures are necessary across various resin technologies. These steps typically involve the meticulous cleaning of the printed component to eliminate any surplus uncured resin. Subsequently, a post-polymerization process is essential, as the polymerization achieved during printing remains incomplete. Dedicated post-processing equipment is accessible to streamline the washing and curing phases of resin prints.

after resin 3d printed parts post processing


Resin 3d printing is a technology that represent a remarkable advantage in additive manufacturing for detailed parts. There are different resin based technology like - SLA,DLP and MSLA and needs based multiple industries. Whether we are talking about production of functional components or artistic creation 3D resin printing has become an essential tool for many professionals looking for a precise tool capable of producing high-quality resin parts. Share your insight with us on our social media like LinkedIn, Facebook, and Twitter.


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