SUNLU PLA Plus 3D Printer Filament, PLA+ Filament 1.75 mm, Clean Wound Filament, Robust 3D Filament, Compatible with 3D FDM Printers, Dimensional Accuracy +/- 0.02 mm, 1 kg Spool (2.2 lbs), Grey

At first, I had a lot of trouble with adhesion with the Sunlu Filaments on my Ender 3 with the glass bed, and also in a Flashforge with the PEI bed, but they's print just fine on the blue surface in the Flashforge.A bit of research revealed that the coating on the glass bed, and the PEI need to be toasty hot to activate the stickiness, and they loosen when they cool. Also, I was using the included Flashforge calibration card. I remembered seeing something about using A4 paper to do this, so I grabbed the nearest piece of A4 and set up the Z axis with that. It happened to be one of those extra thin sheets the NHS send their doctors letters out on.Instant result. the build plate adhesion issue was solved and nothing even tries to curl at the edges now. I print on the glass bed at 75 degrees for the first layer and let it cool to 60 after that. this results in excellent adhesion and the cooler bed prevents upper layers from pulling the print up, while the initial temperature ensures the first layer has enough time to adhere before it cools. Also, be patient with thin flat prints, let the bed cool down completely with the print held in place before you loosen it, this will prevent warping. It's the same story with a PEI bed. At first I took the PEI bed out of the printer when down and set it aside to cool quickly. I actually heard the print crack and warp as it cooled too fast!So far, I've used 15 Different SUNLU filaments, Silk, PLA+ and PLA, all have been great and printed perfectly when using the recommended settings (and a nice tight Z clearance) strength is great on all, and no issues with bridging. The only jams I've experienced were on the horrible quality Flashforge, which got sent back, no issues yet with the Creality.PLA+ needs the extra temperature but is a more consistent print with greater strength for it.

This prints pretty well for a cheaper filament. The only negative is that the spool is badly wound, on multiple occasions I've had to de-tangle the filament mid print.I'm printing on a bambu at higher speeds and I've had no issues with flow or layer adhesion. It's just a shame about the way it's been wound.Overall, pretty good but I don't think I'll get another because of the winding.

few issues with layer separation mid print , quite low strength

I purchased this without realising it was PLA+, and was to replace standard generic PLA that I have been using in my Ender 3 Pro.The first things I tried to print were awful. I played around with setting like bed and nozzle heat, even baked the fresh reel in a Sunlu heater / dehumidifier but it’s no change.My stock PLA settings were 200’C nozzle / 50’C bed. Realising it was PLA+ I revised the temps to 220’C/80’C but still the printed object was poor.I am currently making some more fundamental changes (upgrades) to my Ender 3 Pro and I will try using this material again

Changed to this PLA+ after my regular stuff was out of stock. I haven’t changed back because this is far superior

Had to raise the temperature quite high to get it to stick to the (unheated) base, and still use some Pritt Stick. But then it dribbled out of the print head while warming up, meaning the first lines laid down were barely there. Adding a skirt to use up a bit before starting on the model helped, but keeping it still hot enough to stick to itself ended up with lots of stringiness. This was using the beige / pink skin colour.I didn't have to do any of this with another brand of PLA+ I bought before (which worked at 210-230°C).

Reliable brand for pla

First time I've tried Sunlu PLA+, not sure I'd buy it again at the same price.I've spent hours trying to stop it stringing on my CR-10s Pro with Hemera XS extruder and I just can't dial it in. Best I've got so far is at 205 degrees with 2mm retraction at 45mm/s but I'm still not happy with the results. Very faint wispy strings that get caught in the fans and annoying bumps in the walls. Can eliminate the stringing at 190 but the result is pretty brittle.Judging by the pops as it prints there's quite a lot of moisture in the reel, which probably doesn't help. Maybe it's just their way of selling their filament dryers!Apart from the stringing the finish is ok, nice matt black.