The upper cube is composed of two pieces. Separate the pieces and pour the resin into the bottom half of the cube, then put the upper half back on top. Then set the whole cube on top of you smartphone, with the OLO 3D printer app running. As the virtual object on your smartphone's screen is highlighted in light over and over, it hardens areas of the resin in the cube, creating an object as an internal small platform lifts it up and out of the resin pool -- just like any desktop stereolithography 3D printer.
According to the company, "OLO's building chamber was designed to prevent light penetration in order to maximize the effectiveness of the white light emission from your smartphone's display."
Sign up for Computerworld eNewsletters.