Fibreheart™ PPA-CF FilamentNote Before Printing The PPA CF Black Filament is engineered for use with nozzles 0. 4mm or larger as it contains Carbon Fiber. For 0. 4mm+ nozzles. Nozzles smaller than 0. 4mm will CLOGGED. DO NOT USE Hardened steel nozzles are required. Printer MUST have enclosures. Bambu Lab A1 A1 Mini is not recommended Fibreheart PPA CF 3D Printer Filament is crafted with PPA (Polyphthalamide), a high performance engineering thermoplastic, and fortified with
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