Abstract. Ninety-degree pop-ups are a type of papercraft on which a three-dimensional (3D) structure pops up when the angle of the base fold is 90°. They are fabricated by cutting and creasing a single sheet of paper. Traditional 90° pop-ups are limited to 3D shapes only comprising planar shapes because they are made of paper. In this paper, we present novel pop-ups, fabricatable 90° pop-ups that employ the 90° pop-up mechanism, consist of components with curved shapes, and can be fabricatable using a 3D printer. We also propose an interactive method for converting a 3D model into a fabricatable 90° pop-up. The user first designs a layout of pop-up components, and the system automatically deforms the components using the 3D model. Because the generated pop-ups contain necessary cuts and folds, no additional assembly process is required. To demonstrate the feasibility of the proposed method, we designed and fabricated various 90° pop-ups using a 3D printer.

Materials

[preprint] [CGF page] [GitHub] [slides]

      to appear
      @article{Fujikawa2023,
        author = {Fujikawa, Junpei and Ijiri, Takashi},
        title = {Fabricatable 90° Pop-ups: Interactive Transformation of a 3D Model into a Pop-up Structure},
        journal = {Computer Graphics Forum (proceedings of Pacific Graphics)},
        volume = {42},
        number = {7},
        year = {2023},
        doi = {10.1111/cgf.14954}
      }