Design and application of a novel 3D printing method for bio-inspired artificial reefs
Ecological Engineering(2023)
摘要
Morphological complexity and diversity are key design features for forming artificial reefs that can support marine communities. Towards this end, 3D Printing (3DP) has become a unique fabrication method in the field. In the current study, we develop a novel approach to ceramic 3DP and investigate new morphologies to form marine habitats using additive manufacturing (AM) with eco-friendly materials. A large Paste Based Extrusion (PBE) 3D printer was used in addition to adapted, ceramic materials to develop a Gravity-Stimulated Printing Design method (GSPD) to fabricate bio-inspired reef designs. This approach used a direct parametric design-tool that generates and controls a specific machine tool-path of the printer, bypassing the slicer program. The developed parametric design-tool led to highly complex shapes that assembled a spatial conglomerate structure with the variety and uniqueness of each part. A reef forming prototype made from 87 printed parts was created and installed in a coral reef environment at the northern tip of the Red Sea in the Gulf of Eilat/Aqaba. After two years, we observed abundant marine organisms settling and recruiting at a depth of 12 m to form a new reef. This study demonstrates the environmental potential of AM, specifically in ceramic 3D printing. Our results indicate that the GSPD method can be used for large-scale production of highly complex eco-friendly artificial marine habitats. Using our design approach, we can facilitate morphological complexity in ceramic AR construction that support a diversity of coral reef residents.
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关键词
Artificial habitat,Reef formation,3D printing,Coral reef restoration,Ceramic reef
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