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supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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id caadria2019_639
authors Kladeftira, Marirena, Pachi, Maria, Bernhard, Mathias, Shammas, Demetris and Dillenburger, Benjamin
year 2019
title Design Strategies for a 3D Printed Acoustic Mirror
source M. Haeusler, M. A. Schnabel, T. Fukuda (eds.), Intelligent & Informed - Proceedings of the 24th CAADRIA Conference - Volume 1, Victoria University of Wellington, Wellington, New Zealand, 15-18 April 2019, pp. 123-132
summary Large scale binder-jetting additive manufacturing has been available since almost a decade. While it offers great opportunities for the fabrication of complex ornate forms, so far, the potential of this printing method is not fully explored. Moreover, binder-jetted objects have never been tested for outdoor use and performance, because of the weak bond of the printed parts. This paper presents a design strategy that makes possible the fabrication of large, outdoor installations, with such a fragile material as printed sandstone. The presented process was developed for a full-scale installation of acoustic mirrors that was designed, manufactured and post processed in only a few steps. In the larger picture, this paper discusses how 3D printing can allow for design optimisation and reduction of material, while it proposes post-processing methods that strengthen and seal the printed objects for exterior use.
keywords 3D printing; acoustic mirror; topology optimization
series CAADRIA
email kladeftira@arch.ethz.ch
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100%; open Aghaei-Meibodi, M, Jipa, A, Giesecke, R, Shammas, D, Bernhard, M, Leschok, M, Graser, K and Dillenburger, B (2018) Find in CUMINCAD Smart Slab , Proceedings of ACADIA 2018: Re/calibration: on imprecision and infidelity, Mexico City, Mexico, pp. 320-327

100%; open Bialkowski, S (2016) Find in CUMINCAD Structural Optimisation Methods as a New Toolset for Architects , Proceedings of 34th eCAADe 2016, Oulu, Finland, pp. 255-264

100%; open Dillenburger, B and Hansmeyer, M (2014) Find in CUMINCAD Castles Made of Sand , Proceedings of Fabricate: Negotiating Design and Making, Zurich, pp. 92-97

100%; open Hodder, K, Nychka, J and Chalaturnyk, R (2017) Find in CUMINCAD Process Limitations of 3D Printing Model Rock , Progress in Additive Manufacturing, 3(1), p. 173-182

100%; open Kladeftira, M, Shammas, D, Bernhard, M and Dillenburger, B (2018) Find in CUMINCAD Printing Whisper Dishes. Large Scale Binder Jetting for Outdoor Installations , Proceedings of ACADIA 2018: Re/calibration: on imprecision and infidelity, Mexico City, Mexico, pp. 328-335

100%; open Lim, S, Buswell, RA, Le, TT, Austin, SA, Gibb, AG and Thorpe, T (2012) Find in CUMINCAD Developments in construction-scale additive manufacturing processes , Automation in Construction, 21(1), pp. 262-268

100%; open Ren, S and Galjaard, S (2015) Find in CUMINCAD Topology Optimisation for Steel Structural Design with Additive Manufacturing , Proceedings of Design Modelling Symposium 2015, Copenhagen, Denmark, pp. 35-44

100%; open Rippmann, M, Liew, A, Van Mele, T and Block, P (2018) Find in CUMINCAD Design, fabrication and testing of discrete 3D sand-printed floor prototypes , Materials Today Communications, 15, pp. 254-259

100%; open Wahlstrom, S (1985) Find in CUMINCAD The Parabolic Reflector as an Acoustical Amplifier , Journal Audio Engineering Society, 33(6), pp. 418-429

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