InstructablesA Koi Pond Mosaic Made From 10 Pounds of 3D Printer WasteA Koi Pond Mosaic Made From 10 Pounds of 3D Printer Waste: Every 3D printer owner ends up with quite a pile of plastic waste: failed prints, stringy purge, and the plastic purge tower left behind after a multicolor job. Over three years I saved every scrap of mine, and it added up. When I finally weighed it…