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비정형 건축을 위한 LOM적층기술의 응용

Application of LOM for Freeform Architecture

Journal of the Korean Society for Precision Engineering 2017;34(12):903-909.
Published online: December 1, 2017

1 고려대학교 기계공학부

1 Department of mechanical engineering, Korea University

#E-mail: dhhong@korea.ac.kr, TEL: +82-2-3290-3369
• Received: November 17, 2017   • Revised: November 23, 2017   • Accepted: November 24, 2017

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Application of LOM for Freeform Architecture
J. Korean Soc. Precis. Eng.. 2017;34(12):903-909.   Published online December 1, 2017
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J. Korean Soc. Precis. Eng.. 2017;34(12):903-909.   Published online December 1, 2017
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Application of LOM for Freeform Architecture
Image Image Image Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Relation between deposition rate and resolution7 (Adapted from Ref. 7 with Permission)
Fig. 2 Mechanism of the proto-type 3D printer
Fig. 3 Nichrome hot-wire fixed through spring and universal joint
Fig. 4 Algorithm flow chart for cutting EPS board
Fig. 5 3D CAD model to STL file
Fig. 6 Upper contour and lower contour
Fig. 7 Cutting path generation of a layer from upper and lower contours
Fig. 8 Delaunay triangulation of a layer
Fig. 9 Computation of cutting vector
Fig. 10 Computation of each motor position
Fig. 11 Cutting path generation with motor positions
Fig. 12 Cutting path partition of lower freeform formwork
Fig. 13 Cutting path generation for outline
Fig. 14 Freeform formwork of lower part
Fig. 15 Freeform formwork of upper part
Fig. 16 Bench manufactured by freeform formwork
Application of LOM for Freeform Architecture

AM technologies applied to architecture

AM technologies Features
FDM No need to post process and cheap equipment
Long process time to construct architecture
SLA Fast process and high resolution
Cheap and weak material
Need to post process
SLS Fast process and diverse material
Expensive material
Small manufacturing size
LOM Big manufacturing size
Cheap material and no need to post process
Weak product
Difficult to process the complicated shape
Table 1 AM technologies applied to architecture