1. Easy assembly, 10 minutes only to assemble; 2. All-metal body, aluminum profile mechanism, accurate and stable printing 3. 300*300*400mm large size molding; 4. Automatic loading and unloading filament; 5. Z-axis double screws, Y-axis dual optical axis design; 6. Adjustable Y-axis belt design; 7. Special pulley + profile design, the pulley and the profile are perfectly matched, with higher printing precision.