Initial filament formulas consisting of 100% buoy, aquaculture ropes and fishing nets were formulated and produced, using the Thermoscientific Process 11 twin-screw extruder and spooler (Karlsruhe, Germany).

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The overall process requires a small number of granules being placed within a hopper to undergo a series of temperature changes and be extruded consistently at a 2.85mm diameter. The material is then collected at a precise speed, measured by hand and spooled into a roll of filament ready for 3D printing.