Fig. 2: Hardware and printing process for thin-film DLP.
From: Thin-film DLP 3D printing of multi-material parts with closed-cell internal voids

a The printing process contains four primary stages: Stage I - resin (or solvent) supply, Stage II - thin film formation by film casting, Stage III - curing (or solvent washing), and Stage IV - wiping excess resin or solvent from printed parts and the PET film. b 3D hardware illustration of the printing stages, showing the physical setup and key components for resin supply, film formation, curing, and resin removal. c Two-material printed checkerboard pattern printed with solvent washes between material changes, with tiles of 1 mm and 0.5 mm width.