What Does Digital Light Processing (DLP) Mean?

Definition

Digital Light Processing (DLP) is an additive manufacturing technique similar to stereolithography (SLA). It uses a digital light projector to flash a single image of each layer across the entire platform, curing the resin layer by layer. This process is faster than SLA because it cures each entire layer in one go rather than tracing the outline with a laser.

Explain Digital Light Processing (DLP) like I’m 5

Imagine a magic flashlight that shines pictures onto a pool of gooey stuff. The picture makes the goo hard only where the light shines, and by stacking these pictures, you can make a whole toy.

Why does this matter?

DLP can produce parts with high resolution and smooth surface finishes at a faster rate than SLA. It’s especially useful for industries that need detailed parts quickly, like jewelry and dental applications.

Real Talk

Despite its advantages in speed and detail, DLP has its downsides. The resins can be expensive and may not have the same mechanical properties as other manufacturing materials. Parts can also be brittle and may require significant post-processing. Additionally, DLP printers are often limited by the build size, making them unsuitable for larger parts. It’s a great technology for specific applications but not a one-size-fits-all solution.