LamiFold: Fabricating Objects with Integrated Mechanisms Using a Laser cutter Lamination Workflow

LamiFold: Fabricating Objects with Integrated Mechanisms Using a Laser cutter Lamination Workflow
Danny Leen, Nadya Peek, Raf Ramakers

UIST'20: ACM Symposium on User Interface Software and Technology
Session: 5A: Fabrication: Joints and Mechanisms / Functional Assembly

Abstract
We present LamiFold, a novel design and fabrication workflow for making functional mechanical objects using a laser cutter. Objects fabricated with LamiFold embed advanced rotary, linear, and chained mechanisms, including linkages that support fine-tuning and locking position. Laser cutting such mechanisms without LamiFold requires designing for and embedding off-the-shelf parts such as springs, bolts, and axles for gears. The key to laser cutting our functional mechanisms is the selective cutting and gluing of stacks of sheet material. Designing mechanisms for this workflow is non-trivial, therefore we contribute a set of mechanical primitives that are compatible with our lamination workflow and can be combined to realize advanced mechanical systems. Our software design environment facilitates the process of inserting and composing our mechanical primitives and realizing functional laser-cut objects.