Computational Interlocking Furniture Assembly

Chi-Wing FU*, Peng SONG*, Xiaoqi YAN, Lee Wei YANG, Pradeep Kumar JAYARAMAN, and Daniel COHEN-OR

SIGGRAPH 2015 (technical paper)
(* joint 1st authors)

Furniture typically consists of assemblies of elongated and planar parts that are connected together by glue, nails, hinges, screws, or other means that do not encourage disassembly and re-assembly. An alternative approach is to use an interlocking mechanism, where the component parts tightly interlock with one another. The challenge in designing such a network of interlocking joints is that local analysis is insufficient to guarantee global interlocking, and there is a huge number of joint combinations that require an enormous exploration effort to ensure global interlocking.

In this paper, we present a computational solution to support the design of a network of interlocking joints that form a globally-interlocking furniture assembly. The key idea is to break the furniture complex into an overlapping set of small groups, where the parts in each group are immobilized by a local key, and adjacent groups are further locked with dependencies. The dependency among the groups saves the effort of exploring the immobilization of every subset of parts in the assembly, thus allowing the intensive interlocking computation to be localized within each small group. We demonstrate the effectiveness of our technique on many globally-interlocking furniture assemblies of various shapes and complexity.

Accompanying video (with audio narration)



BibTex Entry

    author   = {Chi-Wing$*$ Fu and Peng$*$ Song and Xiaoqi Yan and Lee Wei Yang and Pradeep Kumar Jayaraman and Daniel Cohen-Or},
    title    = {Computational Interlocking Furniture Assembly},
    journal  = {ACM Transactions on Graphics (SIGGRAPH 2015)},
    volume   = {34},
    number   = {4},
    pages    = {91:1--91:11},
    note     = {$*$ joint first author},
    year     = {2015},


We thank reviewers for the valuable comments, Michael Brown for his voice over, Hadar Averbuch-Elor for proofreading, and Zhongqi Fu for the 3D printing. This work is supported in part by the Singapore MOE Tier-2 grant (MOE2011-T2-2-041), Israel Science Foundation, and the National Natural Science Foundation of China (61403357).