id 
cf2017_431 
authors 
Gonzalez, Paloma; Sass, Larry 
year 
2017 
title 
Constructive Design: Rule Discovery for 3D Printing Decomposed Large Objects 
source 
Gülen Çagdas, Mine Özkar, Leman F. Gül and Ethem Gürer (Eds.) Future Trajectories of Computation in Design [17th International Conference, CAAD Futures 2017, Proceedings / ISBN 9789755614823] Istanbul, Turkey, July 1214, 2017, pp. 431442. 
summary 
This paper presents a rule discovery process for designers that work with physically large 3D printed models. After a period of discovery, rules were formalized, then developed into operations and programmable functions used in a generative design system. Past examples of generative systems are built based on visual constraints leading to graphical outcomes. With the emergence of 3D printing, we introduce ideas for rule building based on physical constraints and outcomes. The decomposition rules are: curved surface slicing, freestanding attribute, interval patterning, edge mating, and pneumatic attribute. The freestanding attribute, the most novel rule, is based on Chilean antiearthquake building techniques. This rule provides the greatest degree of structural stability to a model. We conclude with a discussion of results from the case study used to generate the set constructive rules. We believe this method of module generation, 3D Printing and assembles can support design prototyping and model manufacturing across scales. 
keywords 
Decomposition, Large Objects, 3D Printing. 
series 
CAAD Futures 
email 
palomagr@mit.edu, lsass@mit.edu 
full text 
file.pdf (712,304 bytes) 
references 
Contenttype: text/plain

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last changed 
2017/12/01 13:38 
