Sunlu PLA Rainbow 1.75mm Filament 1kg Spool
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The SUNLU PLA Rainbow 1.75mm Filament 1kg Spool transforms single-extruder 3D printing into a vibrant multicolor experience, automatically cycling through stunning rainbow colors as you print. This upgraded formula changes color every 8 meters (approximately 24g), delivering more frequent color transitions than standard 16-meter rainbow filaments, ensuring spectacular gradient effects even on smaller prints. The sequence flows beautifully through red, orange, yellow, green, blue, purple, and pink, creating eye-catching objects that showcase different colors from every angle without requiring complex multi-extruder setups or manual filament changes.
Made from premium biodegradable PLA material with exceptional dimensional accuracy and machine-wound precision, this rainbow filament combines environmental responsibility with reliable performance, making it perfect for artistic projects, decorative items, prototypes, and educational demonstrations that demand visual impact.
Key Features:
Automatic Rainbow Color Transitions: Changes color every 8 meters (24g) through a complete spectrum cycle of red, orange, yellow, green, blue, purple, and pink, creating seamless gradients without manual intervention.
Enhanced Color Change Frequency: Upgraded 8-meter formula provides 50% more color changes than standard 16-meter rainbow filaments, ensuring vibrant transitions even on smaller prints and detailed models.
Premium PLA Performance: High-quality biodegradable polylactic acid with excellent layer adhesion, low shrinkage, and smooth extrusion for consistent, reliable printing without warping or brittleness.
Precision Manufacturing: Machine-wound with ±0.02mm dimensional accuracy ensures tangle-free feeding, prevents nozzle clogging, and delivers consistent flow throughout the entire 330-meter spool.
Easy Printing Experience: Low melting point eliminates the need for heated beds while maintaining excellent adhesion, making it beginner-friendly yet suitable for advanced applications.
Eco-Friendly & Odorless: Made from renewable plant-based materials that are fully biodegradable and RoHS compliant, with no unpleasant odors during printing for a comfortable workspace.
Specifications:
Material: High-quality rainbow polylactic acid (PLA)
Diameter: 1.75mm (±0.02mm tolerance)
Weight: 1kg (2.2 lbs) spool
Length: 330 meters per kg
Color Change Frequency: Every 8 meters (approximately 24g)
Color Sequence: Red → Orange → Yellow → Green → Blue → Purple → Pink (continuous cycle)
Printing Temperature: 200-230°C (optimized at 205-215°C)
Bed Temperature: No heating required (optional 50-70°C for enhanced adhesion)
Print Speed: 50-100mm/s
Tensile Strength: 6-11kgf
Platform Compatibility: Works with all heated and non-heated print surfaces
Spool Dimensions: 209×209×73mm
Storage: Vacuum-sealed with desiccant for moisture protection
Environmental Properties: Biodegradable, renewable plant-based material, RoHS compliant
Printer Compatibility: Most FDM 3D printers supporting 1.75mm filament
Applications: Artistic prints, decorative objects, educational models, prototypes, gifts, vases, sculptures
Quality Assurance: Machine-wound for tangle-free operation, 24-hour pre-packaging drying process
