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A loose coil of Fire Engine Red PLA+ filament in a vacuum-sealed bag

eSUN

eSUN PLA+ Refilament 1.75mm 1kg Fire Engine Red

SKU CH-P1V4-P1N17

Spoolless PLA+ refill for FDM printers, 1.75 mm diameter with ±0.03 mm tolerance, prints at 210–230 °C on a 45–60 °C bed

  • ColorFire Engine Red
  • MaterialPLA+
  • Diameter1.75 mm
  • Compatible SystemFor FDM 3D Printer
  • Weight2.20 lbs. (1 kg)

Color Fire Engine Red

  • Spool-less design works with Bambu Lab and eSUN holders
  • PLA+ material gives higher strength and toughness than standard PLA
  • Tight ±0.03 mm tolerance prevents jams and improves layer adhesion
  • Vacuum-sealed bag with desiccant keeps filament dry and dust-free
  • Prints at 210-230 °C on most FDM printers

eSUN PLA+ Refilament spoolless coil

eSUN PLA+ Refilament is a 1.75 mm PLA+ filament supplied as a 1 kg spoolless coil for FDM 3D printers. It targets makers who already own a compatible spool holder and want a low-waste refill option. The material is an upgraded PLA with higher strength and toughness than standard PLA, suited for functional parts and general-purpose printing. Fire Engine Red is one of several available colours.

Thermal settings and printing behaviour

Recommended nozzle temperature is 210 to 230 °C with a bed temperature of 45 to 60 °C. Fan speed at 100 % and print speeds of 40 to 100 mm/s are advised. The filament is made from plant-based starch, produces low shrinkage and resists warping or cracking during normal indoor printing. Dimensional tolerance is held to ±0.03 mm for consistent feeding.

Sustained high-speed printing performance

The spoolless design is engineered for high-speed printers and maintains steady extrusion during long runs. Tight diameter control and good winding prevent tangling or overlap that could interrupt extended prints. Strong layer bonding supports durable parts printed continuously at speed. A vacuum-sealed bag with desiccant preserves filament quality between sessions.

Highlights

  • Spool-less design works with Bambu Lab and eSUN holders
  • PLA+ material gives higher strength and toughness than standard PLA
  • Tight ±0.03 mm tolerance prevents jams and improves layer adhesion
  • Vacuum-sealed bag with desiccant keeps filament dry and dust-free
  • Prints at 210-230 °C on most FDM printers

Specifications

BrandeSUN
ColorFire Engine Red
MaterialPLA+
Diameter1.75 mm
Compatible SystemFor FDM 3D Printer
Weight2.20 lbs. (1 kg)

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Questions about this item

How do I load this spoolless PLA+ onto my printer, and what is the step people forget?

Mount the coil on a compatible spool holder such as the Bambu Lab or upcoming eSUN holder, then feed the 1.75 mm filament into the extruder; the step many miss is securing the free end before removing the vacuum seal so the coil does not spring loose and tangle.

What maintenance will this refill filament need over time?

Store unused portions in the original vacuum bag with the desiccant pack; if the material absorbs moisture after opening, dry it at 45-60 °C before printing again to restore the 210-230 °C extrusion quality.

What limit appears first during a long, high-speed print with this PLA+?

The 40-100 mm/s speed window combined with 100 % cooling fan is the practical ceiling; pushing beyond that typically causes layer adhesion loss or nozzle clogging before the +/- 0.03 mm diameter tolerance becomes an issue.

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