Computer-aided design of flat patterns allows designers toÂ prototype foldable 3D objects made of heterogeneous sheetsÂ of material. We found origami designs are often characterizedÂ by pre-synthesized patterns and automated algorithms.Â Furthermore, augmenting articulated features to a desiredÂ model requires time-consuming synthesis of interconnectedÂ joints. This paper presents CardBoardiZer, a rapid cardboardÂ based prototyping platform that allows everyday sculpturalÂ 3D models to be easily customized, articulated and folded.Â We develop a building platform to allow the designer to 1)Â import a desired 3D shape, 2) customize articulated partitionsÂ into planar or volumetric foldable patterns, and 3) define rotational movements between partitions. The systemÂ unfolds the model into 2D crease-cut-slot patterns ready forÂ die-cutting and folding. In this paper, we developed interactiveÂ algorithms and validated the usability of CardBoardiZerÂ using various 3D models. Furthermore, comparisonsÂ between CardBoardiZer and methods of AutodeskÂ® 123DÂ Make, demonstrated significantly shorter time-to-prototypeÂ and ease of fabrication.