Examples include:įor specific use cases that require high accuracy or throughput. When it comes to build size, SLA has higher resolution for larger parts that take up more of the build platform. The ability to print parts with 25 micron XY resolution with SLA provides a slight advantage compared to DLP. When resolution and build size matter most. Here is a basic overview of when to use SLA vs DLP, and vice versa. The type of photopolymer 3D printing you use depends on a range of factors. Both technologies operate with a vat of resin, however SLA uses pinpoint laser technology while DLP operates with a digital projector screen to flash-cure an entire layer. The most commonly used photopolymer resins for 3D printing technologies on the market are SLA and DLP. This typically requires strategic material jetting or highly advanced UV light placement to create solid, 3D printed parts. When exposed to UV light, the photopolymer resin layers adhere together to create a homogenous part. In contrast, photopolymers are thermosets, meaning the material-or resin-is cured and hardened to develop specific mechanical properties. Beginning with stereolithography (SLA) technology in 1984 and progressing with digital light processing (DLP) and polyjet printing over the past several decades, photopolymers offer a distinct advantage for product developers, engineers and researchers.Īlternative 3D printing processes utilize thermoplastic materials via filament or pellet extrusion. ![]() Liquid photopolymer resinģD printed photopolymers go from a liquid resin composed of monomers and oligomers to a solid polymeric network with a defined shape when exposed to light of specific wavelengths. ![]() Photopolymers are common in 3D printing because of their versatility and compatibility with a variety of 3D printing processes. By definition, a photopolymer is a light-sensitive material that changes physical properties when exposed to light.
0 Comments
Leave a Reply. |