Digital light processing (DLP) and liquid crystal display (LCD) 3D printing have similarities to stereolithography (SLA) 3D printing; each of these technologies uses a light source to cure the resin. A projector is used to cure photopolymer resins in DLP printing and UV LEDs are projected through and LCD screen for LCD 3D printing.
The process of printing using these technologies can be “top-down” or “bottom-up”. In “top-down” printing, the object being printed is lowered into the resin and returns to one layer lower than previous after each layer is cured. In “bottom-up” printing, the object being printed is pulled out of the resin and returns to one layer higher than the previous after each layer is cured. The process is repeated layer by layer until the shape is built.
More than 30 years’ experience in stereolithography resins
Experienced material scientists
Large ecosystem of partners
Fast-printing, general purpose resin for DLP/LCD printing
Historically, photopolymers have been slow and expensive to develop for vat polymerization technologies; coupled with inadequate performance and high margins, their use in high volume applications are limited. New business models, open print technology and advancements in chemistry are accelerating material development and opening up new production applications for additive. Origin and Covestro are combining chemistry expertise, advanced print technology and an economical cost model.
In this webinar, Origin and Covestro discuss photopolymer development for SLA and DLP technologies, the benefits of open vs. closed systems for material development and what’s next for the photopolymer industry.
Materials strong and rigid, or soft and flexible, Covestro Additive Manufacturing has a breadth of materials to meet a variety of application needs – with more in development.
Contact our experts to discuss how Covestro can help you tap into the full potential of additive manufacturing.