The performance of 3D printing filament is determined by the substrate, and mainstream general materials are divided into three categories, covering the full scene requirements from hard to soft:

 1. PLA: environmentally friendly entry-level filament, made of renewable raw materials, easy to print, high precision, suitable for cultural and creative models and novice operations.    

 2. PETG: High cost-effective universal rigid filament, combining easy printability and high toughness, water and impact resistance, and widely applicable in various scenarios.  

 3. TPU/TPE: A soft high-performance material with good elasticity, wear resistance, and tear resistance. It can be customized with special properties and is suitable for various soft models and functional components.