PLA Plus 1.75mm 5kg Filament Spool - Large Capacity for Big Prints

In this review the SUNLU PLA Plus 1.75mm 5kg spool is evaluated for makers and small workshops who need long, uninterrupted print runs. The bottom line: this spool is best for projects that benefit from a large capacity and consistent filament feed, because the 5kg large spool and dimensional accuracy of +/- 0.02mm minimize stops and extrusion issues during long prints. The reviewer found it especially useful when printing large models or multiple parts without frequent filament swaps.

Key Features

• 5KG Large Spool Size: The 300mm diameter and 120mm width spool holds 5kg so users can print large models or long batches without changing filament often.
• PLA Plus Strength: The PLA PLUS formulation is reported to be stronger than standard PLA, giving more durable prints for functional parts and prototypes.
• Neatly Wound Spool: Advanced winding reduces knots and tangles, improving reliability and cutting down on failed prints due to filament feed problems.
• Dimensional Accuracy: The 1.75mm filament is manufactured to +/- 0.02mm, improving extrusion consistency and compatibility with many FDM printers.
• Wide Compatibility: The spool fits many common machines and works with most FDM printers, so it is easy to drop into existing setups like Ender series machines.

Who It's For

This spool suits hobbyists, makerspaces, and small shops printing large models, batches, or long-run prototypes who want fewer filament swaps and more consistent extrusion. Anyone who values tidy spool winding and reliable print quality will appreciate the lower risk of tangles and smoother multi-hour prints.

Users who require specialty filaments such as flexible, high-temperature engineering plastics, or strict color matching for production parts should look elsewhere, since this product is a PLA PLUS general-purpose filament intended for ease-of-use and strength rather than niche material properties.

Pros & Cons

Pros

• Large 5kg spool reduces interruptions on long prints and is physically compatible with many printers.
• Improved strength and layer adhesion compared with standard PLA makes functional parts more durable.
• Neatly wound filament reduces the chance of tangles and feed issues during long runs.
• Dimensional tolerance of +/- 0.02mm helps maintain consistent extrusion and print quality.

Cons

• Some users report mixed experiences with filament breaking or adhesion variability, so results can depend on printer setup and profiles.

Specifications

Product	SUNLU PLA Plus 1.75mm
Weight	5kg (11lbs) spool
Spool Diameter	300mm
Spool Width	120mm
Spool Hub Hole	55mm
Filament Diameter	1.75mm
Dimensional Accuracy	+/- 0.02mm

Our Verdict

For anyone printing large models or multiple parts, this 5kg PLA Plus spool is a practical value: the large capacity, neat winding, and tight diameter tolerance make long prints easier and more reliable. It is a solid choice for hobbyists and small shops wanting dependable, general-purpose filament without frequent swaps.

Frequently Asked Questions

Will this spool fit common 3D printers?
Yes; the 300mm diameter and 55mm hub hole are suitable for many FDM printers and the filament is compatible with most 1.75mm setups.

Is the filament prone to tangles?
The spool is described as neatly wound to minimize knots and tangles, which improves feed reliability during long prints.

How consistent is the filament diameter?
The filament is manufactured to +/- 0.02mm, which helps achieve consistent extrusion and print quality across runs.