Digital light processing (DLP) is at the forefront of 3D printing. To say it has the potential to be the future of 3D printing is modest.
3D printing, in general, is an exciting and rapidly growing industry, with around two-thirds of US manufacturers using the technology for production and processes.
The question is, is DLP the future of 3D desktop printing? Read on for everything you need to know about it.
3D Digital Light Processing Explained
DLP, or digital light processing 3D printing, uses a digital projector to flash a screenshot of an entire layer onto a resin surface. As with other methods of 3D printing, DLP cures an entire layer of resin at a time instead of tracing out a pattern (line-by-line), making it fast and incredibly accurate.
You can imagine how different DLP is compared to FDM and SLA. Where pushed polymer nozzles characterize FDM and laser etching shapes mark SLA, DLP brings an image to life through flashes of light. And, DLP achieves sharp detail, great smoothness, tight tolerances, and does not exceed the expected print time.
How It’s Beneficial for 3D Desktop Printing
When it comes to readiness to unleash the equipment’s power, DLP has no competition.
DLP printers complete each layer instantly by capturing a single flash of light in a split second, allowing them to complete the entire process without the need for perimeter tracing. Unlike slow pen plotter FDM machines that mimic layer drawing tediously, DLP printers are always ahead in speed. The efficiency with which DLP printers operate results in less painful and more productive prototyping processes.
DLP printers can also print fundamentally with unparalleled precision. If your model or project requires perfect symmetry and sharp edges, DLP is the way to go.
We overlooked surface finish, smoothness, and detail, but DLP prints output with minimal sanding and, refreshingly, almost zero sanding that renders the surface vividly smooth. Prototypes, functional and cosmetic, as well as consumer-ready parts where particular attention must be paid to aesthetics, all benefit greatly from the smooth finishing.
The power of desktop DLP printers doesn’t correlate with their size. Some of the best models are small enough to fit on a studio desk or a lab bench, so they don’t take up too much space.
Entry-level DLP printers are also now more accessible than before. The price of resin has also lessened, making what was once a high-end niche accessible to hobbyists, startups, and small businesses.
Will DLP Be The Future of Desktop 3D Printing?
The answer is yes. As of now, it kind of is.
An increase in creators using DLP technology for speed paired with quality is pushing DLP to be the future. It makes complete sense if you’re in need of a quickly made prototype with exceptional clarity. The technology has shifted from being exclusive to large laboratories and high-end production lines to commonly being found in garages and design studios, making it ubiquitous.
Hybrid workflows are also becoming increasingly common. Designers generate fast, high-detail masters using DLP and utilize other methods for scaling or iteration. It’s not just substituting other technology—it’s merging into everything. That’s a meaningful advantage to hold.
DLP is a strong candidate to dethrone the other 3D printers as the best in the market. If you’re a designer, an engineer, or a hobbyist looking for more out of every print, add DLP to your list of considerations.
