Fresh Press Modeler: A generative system for physically based low fidelity prototyping

Abstract

For designers, digital manufacturing machines, such as laser cutters and CNC machines, support rapid prototyping of low-cost, low fidelity physical models. These machines can be used as an alternative to additive manufacturing. Unfortunately there are few CAD tools that provide access for fabrication of complex 3D geometries with these 2D fabrication machines. The literature contains a few novel systems that generate planar structures as models built of layered material or as interlocking planes with unique joining features. In this paper, a Fresh Press modeler is presented as a novel system that generates tailored geometry for ease of assembly. A major benefit of Fresh Press is the ability to produce fabrication data leading to a watertight planar structure. Assembly between planes is sustained by interlocking finger joints generated on each planar component of the model. The Fresh Press modeler parameterizes planar surfaces and interlocking features for user control and model quality. We end by demonstrating the system with examples of solid models and negative models used for mold making.