This method is considered high resolution compared to FDM. A monomer/oligomer ink turns into a solid by exposure to UV light (360-405 nm, depending on the printer). The specific pixel exposure to light is achieved using a DLP projector, to form the layer-by-layer patterns, each layer as thin as 1 μm. Since the ink is placed in a bath, various printing materials can be used, as long tas they are liquid and polymerized under irradiation at the specific wavelength of the printer. Pico2 is extremely useful for material development, microfluidic fabrication, and precision molding.
For more details on the technology see: