SUNLU Premium PLA+ Filament 1.75mm, Enhanced Durability and High Strength | PLA Plus 3D Printer Filament for 3D FDM Printers, 1kg Spool, pla+ Black

First Impressions & Context I needed a bright orange filament for a specific project requiring high visibility, and since I didn’t have any in my current inventory, I picked up this roll. As an experienced 3D printing hobbyist, SUNLU has actually been my go-to filament brand for a number of years because of its consistent quality. Right out of the box, the spool arrived well-packaged and was very neatly wound, which is always crucial for preventing tangles during long, unattended prints. Performance & Real-World Testing To test this roll, I used the orange PLA+ to print out a batch of cones. I ran it through my machines using my standard, default slicing profiles without tweaking any advanced settings or parameters. The filament printed absolutely perfectly on the first try. The bed adhesion was excellent, the layer lines were incredibly uniform, and the colour came out vibrant. It fed smoothly throughout the entire run without any clogging or under-extrusion issues. I honestly have no complaints or negative remarks about this roll, as it performed exactly as a reliable PLA+ should. The Bottom Line This roll is definitely worth the price. If you want a hassle-free filament that you can trust to print right the first time without constant troubleshooting, SUNLU remains an incredibly reliable choice for both quick projects and long-term use.

I admittedly bought the transparent colours by mistake — and wow, am I glad I did. They’re brilliant. Every 3D designer should have a few transparent colours in their collection. The colours really make prints pop in thumbnails and photos. I had no issues printing straight out of the box. They run perfectly with the AMS 2 Pro (no heater running). I never dried the filament, but I normally don’t with PLA — I just keep everything stored well. There was no stringing or blobbing at all, and adhesion was excellent on stock settings at 55°C. I didn’t even bother with flow calibration. The spool was also neatly wound. These are being used on a Bambu P1S, H2C, and P2S. I normally buy Bambu filament, but after this experience I’ll definitely be buying these again. Overall: excellent filament.

Great PLA filament – very reliable and easy to print with! 👍 I’ve been really impressed with the quality of this filament. It feeds smoothly through the printer and produces consistent prints with clean layers and good detail. I didn’t experience any clogging or tangling, and bed adhesion was excellent. The color is vibrant and the finished prints look great. It also seems very well wound on the spool, which makes printing long jobs worry-free. Overall, this is a great value filament and I’ll definitely be buying more for future projects! ⭐

I've been using the 5-pack of SUNLU PLA+ filament for a few weeks now, and it's been a very solid choice for bulk 3D printing. Each spool in the pack is 1kg, and they’re all neatly wound with no signs of tangling, which is always a relief when running longer prints. The dimensional accuracy is consistently tight, which means I haven't had to troubleshoot feeding or extrusion issues – everything just prints reliably. In terms of performance, this PLA+ definitely lives up to the "plus" in its name. It feels tougher than standard PLA, making it ideal for parts that need a bit more durability, like brackets, tools, or functional prototypes. It sticks well to the bed and maintains good layer adhesion, even on prints with overhangs or fine detail. I’ve used it across different printers and it’s remained predictable and consistent. One of the things I like most is that it handles well without needing too much fiddling with slicer settings. It's not quite as refined in finish as some high-end filaments – there can be some visible layer lines depending on the part – but for general use, especially when you’re producing a lot of items or testing designs, this bundle is exceptional value. Overall, the SUNLU PLA+ 5-pack offers a great combination of reliability, toughness, and affordability. It’s not flashy, but it gets the job done and keeps your printers running efficiently without worrying about quality issues. I’d definitely recommend it to anyone who prints regularly and wants dependable filament without paying a premium.

Edited 5th Nov to add 2 stars as Sunlu, after checking photos etc, refunded the cost so I can buy again. As people say, it is not the problems it is how you deal with them, I can recommend them as their customer service will respond quickly and they will fix it. Shows customers and product perception are important to them. I have other filaments which are 1.6mm near the end of the spool, I assume this is because of tension stretching the filament on the initial windings. Again I guess the filament is warm when wound on as it takes the shape of the spool. In this case as it is a 1kg spool (other were 750g) perhaps the weight caused tension in the final windings too ? I will unwind 10% of the spool sometime and see if it goes to 1.7. So buy with confidence as they do their best to sort out problems with no arguments. The plasticky smell I believe comes from certain colours, this was silver, perhaps clear will be better. I have been using ice filament but thought I would try this for a change as the ice went to 1.6mm diameter towards the end. This was 1.7 to start but quickly went to 1.6 !!! Easily seen as it was producing bad layers and the top layers were missing the edges. This is caused by small diameter causing backlash in the bowden tube coupled with not enough filament being extruded. 1.6mm is 10% too small, a massive amount in filament terms. Increasing flow rate to 112% fixes the problem, and confirms the lesser diameter. Another problem (on the silver one anyway) is fumes. Other makes have never been a problem but I got sore eyes being in the same room when printing. Out of the box the filament smells 'plasticky' and more so when heated. Deserves a star for being flexible (maybe just thinner so bends more :( ) but could have it's uses. Use in a ventilated room and use a vernier gauge to check diameter before each print and adjust flow rate to suit. Doubt I will use any more as just too risky, no idea what the fumes are. I will ask amazon for a refund but doubt it is worth returning due to weight, I will return it as long as Sunlu refunds Amazon as not their fault. Don't buy it loads better out there. This is my first ever bad review. Sorry but can't recommend it

I'm really pleased with this filament. It's been completely reliable from the moment it came out of the pack, with a tidy, even spool that feeds smoothly through the printer. Prints have come out clean with strong layer adhesion, no tangling, and very little warping, even on slightly larger pieces. The finish is tidy straight off the bed, and it feels a bit tougher than standard PLA, which is great when you're printing functional parts or anything that gets handled regularly. Colour was consistent throughout the roll too. If anything, the only slight downside is that certain colours seem to go out of stock quickly, but performance-wise it's been faultless for me. Overall, a solid, dependable filament that I'm happy to keep buying.

This filament gives great quality prints and is compatible with Bambu printers with no additional settings Would recommend

I’ve been using SUNLU PLA filament for a while now, and I’m really impressed with its consistency and performance. The filament comes well-spooled with minimal tangles, and it feeds perfectly through my printer every time. It prints smoothly, with excellent layer adhesion, and very little stringing or warping compared to other PLA brands I’ve tried. The finish on prints is clean and slightly glossy, which makes models and decorative pieces look professional. I’ve printed both detailed models and larger pieces, and it handles both equally well. Dimensional accuracy is reliable, so parts fit together as expected without post-processing adjustments. Another big plus is how easy PLA is to work with, and SUNLU’s quality makes it even better—strong enough for functional parts, but still easy to sand and paint if needed. Overall, SUNLU PLA is a top-notch filament that combines ease of use, excellent print quality, and reliable consistency. Definitely one I’ll keep stocked.

Bästa filament

Jamais déçu avec le PLA+ sunlu, jamais de noeuds, diamètre constant, couleur incroyable j'ai une bobine de jaune fluo qui a un rendu vraiment cool.

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Bonne adhérence, fini parfait, imprimé avec Creality CR6 SE, je recommande

Imprimer avec ma k2 combo se produit va très bien j'ai pue Imprimer les phare de ma voiture en 2 couleur