The eSUN CMYK PLA+ 1.75mm 1kg 3D Printer Filament 4-Piece Set is a specialized multi-color material bundle designed for high-resolution full-color 3D printing and lithophane fabrication on desktop FDM 3D printers. Formulated using eSUN's modified PLA+ polymer blend and calibrated to the standard subtractive color model (Cyan, Magenta, Yellow, and Key/Black or White/Light), this four-spool set provides enhanced toughness, smooth layer blending, and precise optical transmission for multi-material systems, color-mixing hotends, and photo lithophane slicing software.

Specification

• Brand / Manufacturer: eSUN
• Product Name: CMYK PLA+ Filament 4-Piece Bundle Set
• Filament Diameter: 1.75mm (Dimensional accuracy within ±0.03mm)
• Net Weight: 4kg Total (4 x 1kg / 2.2 lbs Individual Spools)
• Set Color Palette: Cyan (C), Magenta (M), Yellow (Y), and Key / Black or White (K)
• Material Base: Enhanced Polylactic Acid (PLA+ / ePLA+)
• Recommended Extruder / Nozzle Temperature: 205°C to 225°C
• Recommended Heated Bed Temperature: 50°C to 65°C
• Printing Speed Range: 40mm/s to 100mm/s (High-speed compatible up to 250mm/s on tuned systems)
• Spool Material: Eco-Friendly Recyclable Cardboard or Plastic Spools
• Tensile Strength: Approx. 63 MPa
• Elongation at Break: Approx. 20%
• System Compatibility: Works with Bambu Lab AMS, Anycubic ACE Pro, Creality CFS, dual/quad extruder systems, multi-material switching units, and single-nozzle FDM printers.

Features

• Calibrated Color Mixing and Optical Density: Pigmented with precise color values designed to blend accurately in multi-color slicing algorithms (such as Bambu Studio, HueForge, and Lithophane software) to reproduce true-to-life photographic hues and gradients.
• Enhanced PLA+ Mechanical Strength: Delivers up to twice the impact resistance and layer bonding strength of standard PLA, preventing brittle filament breakage and creating durable end-use decorative and functional prints.
• Tight Dimensional Uniformity: Extruded to strict ±0.03mm diameter tolerances, ensuring smooth, jam-free feeding through Bowden tubes and automated multi-material feeder units without under-extrusion voids.
• Neat Spool Winding Technology: Layer-by-layer machine winding eliminates filament overlaps, tangles, and knots that can interrupt lengthy multi-color printing cycles.
• Low Odor and Biodegradable Base: Produced from renewable corn starch resources, generating minimal odor during printing and safe for classroom, studio, and home workshop environments.

Common Applications

• HueForge and 2D-to-3D Photo Relief Art: Creating vibrant multi-color 2.5D paintings, photo portraits, and graphic posters by layering CMYK optical color bands at precise layer heights.
• Backlit Color Lithophanes: Printing custom photo lampshades and illuminated frames where light passing through Cyan, Magenta, Yellow, and White/Black layers produces full-color photographic images.
• Multi-Material System (AMS / CFS) Printing: Producing vivid multi-colored functional models, figurines, logos, and educational visual aids on automated filament-switching 3D printers.

Professional Installation and Maintenance Tips

• Calibrate Transmission Distance (TD) for HueForge: If using color-blending software like HueForge, run a test swatch to measure the Transmission Distance (opacity level) of each color spool at your print temperature to ensure accurate color recreation in the final image.
• Maintain Controlled Bed and Nozzle Temperatures: Run the nozzle around 210°C to 215°C with the build plate at 55°C - 60°C to ensure strong layer bonding without stringing between frequent color switches.
• Keep Spools Dry for Multi-Material Systems: While PLA+ absorbs moisture slower than PETG or TPU, excess humidity can cause minor oozing and stringing during color purge sequences. Store unused spools in vacuum bags with silica desiccant or use an active filament dryer box.
• Use Proper Purge Volumes on Multi-Material Setups: When transitioning from dark colors (Key/Black or Magenta) to light colors (Yellow or White), verify that your slicer flushing/purge volume is set sufficiently high to prevent color bleed and tint contamination on model perimeters.