SUNLU PLA+ 2.0 Filament Upgrade (1.75mm) – 3KG Large Spool, 3D Printing Filament
Product description
Quick overview
If you’re moving up from standard PLA+ or you just want a PLA+ that feels a bit less fragile, SUNLU’s PLA+ 2.0 aims to deliver more strength and less risk of brittle, cracking finishes. On paper, it’s built for tougher-looking prints while still behaving like an accessible, FDM-friendly filament.
The other reason people pick this kind of spool is predictability: melting and flow “quickly” and neatly wound feed are both mentioned as priorities, and that tends to matter when you’re trying to avoid mid-print faff. It’s also positioned around mainstream 1.75mm FDM printers, so it’s not trying to be a niche material.
Key features that affect real prints
The headline change versus basic PLA+ is resistance to brittleness and cracking. That’s a small phrase, but it translates into a practical expectation: parts that are less likely to look fine for a moment and then develop stress-related issues once they’re handled, fitted, or exposed to everyday knocks.
SUNLU also flags fast, smooth melting and flow, with printing speeds “up to 300mm/s”. Even if you never run at the top end, the key is that it’s designed to support quicker throughput without forcing you to accept poor detail.
Then there’s the spool and feed story. The filament is “neatly wound” to help prevent tangling or clogging during printing. In real life, that’s the sort of benefit you notice more over longer runs than in the first test cube.
Finally, dimensional accuracy is given as +/-0.02mm. For buyers chasing a tighter fit on functional prints, that’s the number you look for—though it doesn’t replace good calibration and sensible slicing settings.
Tech specs
- Name: SUNLU PLA+ 2.0 Filament Upgrade PLA+
- Type: FDM 3D printer filament
- Format: 1.75mm filament
- Size: 3KG/1 large spool (6.6lbs)
- Material: PLA+
- Dimensional accuracy: +/-0.02mm
- Recommended nozzle temperature: 205-220°C
- Recommended bed temperature: 50-60°C
- Recommended print speed: 100-300mm/s
What to expect in everyday use
Let’s talk micro-scenarios. Suppose you’re printing a set of small functional parts—say clips, light brackets, or a decorative piece that still needs to survive being picked up repeatedly. With a PLA+ that’s described as tougher and less prone to cracking, you’re buying peace of mind for those “it will be handled” jobs.
The fast-melt/flow claim is also relevant if you do prototypes or batches. If you’re printing multiple iterations of a model (or a long job that you’d like to finish sooner), this filament’s designed behaviour is likely to feel more efficient than slower, finickier materials.
That said, it’s not perfect: speed “up to 300mm/s” is only useful if your printer, cooling, and setup can actually support it. If you prioritise ultra-clean surfaces or tiny tolerances, you may end up printing slower than the maximum.
Installation and setup: the part buyers sometimes skip
This filament comes with recommended settings, which is a good start if you’re not already dialled in. The suggested range is nozzle 205-220°C and bed 50-60°C, with print speed 100-300mm/s.
Worth considering: dimensional accuracy of +/-0.02mm sounds reassuring, but print outcome still depends on your printer calibration, model geometry, and how your slicer handles perimeters and retraction. So if your machine is slightly off, you might not see the full benefit.
The best approach is to start within the middle of the recommended temperature and speed ranges, print a small fit test, then adjust. That way, you’re not guessing with the full spool.
Pros, cons, and who it suits
What stands out - More resistance to brittleness and cracking than standard PLA+ (aimed at stronger, more durable prints) - Designed for fast printing with smooth flow (potentially faster turnaround) - Neatly wound spool concept to reduce tangling/clogging risk - Dimensional accuracy stated as +/-0.02mm, which matters for functional models
Limitations to keep in mind - If you specifically need the absolute best for precision fit, you’ll still need to do your own calibration checks—accuracy is only one part of the equation - “Up to 300mm/s” may be optimistic depending on your printer setup, you may not want to chase maximum speed
It’s a good match if you want a fairly straightforward 1.75mm FDM PLA+ filament that leans towards toughness, with a spool design meant to make day-to-day feeding less annoying.
It may not be the best choice if you’re expecting it to behave like a specialised high-end engineering filament. For those cases, you’d usually look for materials built around that specific performance goal rather than “PLA+ but tougher”.
Mini FAQ
Final verdict
Is it worth it?
Buying SUNLU PLA+ 2.0 (1.75mm, 3KG large spool) makes sense when you want stronger-looking, less brittle prints without jumping into a totally different class of filament. The stated dimensional accuracy and the emphasis on reducing cracking are the reasons it’s worth a look for functional parts and projects that get handled.
Skip it (or at least pause) if your goal is very niche performance—like needing materials designed for extreme conditions—or if your printer setup can’t realistically take advantage of the recommended speed/flow behaviour. In most normal FDM workflows, though, it comes across as a sensible “upgrade PLA+” option: not flashy, but thoughtfully positioned for durability and smoother printing.