SLAs use lasers to draw parts on the resin, which is time consuming. DLP does not have to draw lines one by one, and each shot can cure a large amount of resin, so the processing speed is faster.
Regardless of how fast the printer is, SLA is a time consuming technology. Imagine painting on a piece of paper with a fine tip pen, first sketching out the shape, then using the pen to color the middle part, one page after another. Although this process may take a long time, it is theoretically possible to obtain a finely cured product with a fine edge. At the same time, ordinary DLPs typically use a high-definition projector to project a full layer of content onto the polymer, closer to stamping each page of paper.
But because the light projected by the projector is in pixels – forming a voxel in the resin, also known as a voxel – it is undeniable that this pixelated square will affect the edge smoothness. The above is a quick comparison analysis of SLA and DLP. But is this all? Not to be considered – especially from patent applications filed globally. In addition, experience is very important for 3D printing process technology.
Imagine: What if DLP finds ways to soften sharp, pixelated edges? Will it be better than the best SLA?
Advanced DLP technology can solve the problems of ordinary DLP technology, providing fast, accurate and smooth surface treatment.