SUNLU PLA 3D Printer Filament, 1.75 PLA Filament Dimensional Accuracy +/- 0.02 mm, 1 kg Spool, 1.75mm 1.75 PLA Filament

When it comes to 3D printing filament, not all are created equal! This brand I have been using for a few years now and it never disappoints! If you want a good quality filament, this brand is to be trusted! Highly Recommended! There is only 2 brands that I trust in buying again and again, this is one of them! ESun is the other brand!

Absolutely horrible plastic. Extremely brittle. Breaks ALL THE TIME in my AMS and/or in the extruder. After unloading you can visibly see all the tiny breakage inside the filament. Just did a multimaterial print with around 10 changes, every single material change broke somewhere in the feeder, AMS level, extruder etc. despite cutting after each unload the parts that was already fed in, where you can see the little breaks in. Spent more time fixing the printer than the print itself.

I picked up this spool of SUNLU 1.75mm PLA to run a large batch of prototype assemblies, workshop organizational bins, and functional mechanical models. While exotic engineering filaments have their place, a high-quality standard PLA is the true workhorse of any print room. This spool completely delivers on its marketing promises, providing exceptionally clean layer lines and reliable, trouble-free extrusion right out of the box. Key Performance Observations: Flawless Tangle-Free Precision Winding: The absolute standout feature of this spool is the mechanical layering. The filament is wound incredibly flat and uniform from the inner core all the way to the outer rim without any crossing strands. This meticulous winding entirely removes the risk of overlapping cross-over knots, giving you absolute peace of mind during long, unattended overnight print runs. Outstanding Dimensional Control: Measuring multiple points randomly across the roll with digital calipers, the 1.75mm diameter stayed highly consistent. This precise uniformity completely prevents sudden flow fluctuations, yielding exceptionally smooth outer walls with zero under-extrusion gaps or messy z-banding. Excellent Bed Adhesion & Minimal Warping: This blend features fantastic thermal stability. It anchors down securely to the build plate with massive initial grab force, ensuring that wide-footprint models stay perfectly flat with absolutely zero corner lifting, peeling, or shrinking. Makerspace Setup & Slicer Tuning Tips: My Settings: I achieved pristine, glass-smooth results running a 210°C nozzle temperature, a 55°C bed temperature on a textured PEI sheet, and keeping the part cooling fans locked to 100% in the slicer to ensure sharp overhangs and crisp structural bridging look pristine.Easy Post-Processing: Because this formula pulls away from the nozzle cleanly, it minimizes standard PLA stringing or oozing. Any light wisps are easily cleared with a quick pass of a heat gun, leaving a beautiful uniform surface sheen. The big takeaway: SUNLU has delivered a premier, no-nonsense material that provides an incredibly dependable printing experience for a very affordable price point. It flows reliably, handles complex geometric patterns cleanly, and eliminates the common headache of spool tangles entirely. It is a fantastic value purchase that has earned a permanent place in my workshop's daily material rotation.

As PLA goes it isn't the best, but that's more to do with being a translucent filament rather than being poorly formulated. It prints at normal temperatures, isn't brittle, doesn't clog (which suggests good dimensional accuracy which you would expect from a Sunlu labelled filament. Not inclined to tangle and looks good. Note that transparent PLA is notorious for being prone to hair. You have to fuss with parameters for best results. I've used it for desiccant jars i place in the hub of filament spools as it lets me see the degree of moisture absorption in the filaments. Like all PLA it is NOT very impact resistant, especially if your print is mostly lattice work (gotta have air circulation which means weak walls.)

**Update** I have a recent lightsaber project I'm putting together for my friend and tried out the silver PLA, and once again got pretty impressive results. Didn't need to do anything crazy, standard 200/60 temps and a PEI steel sheet to print on top of. The results came out really clean and I'm really pleased. Based on this I can vouch for the basic color blends as well as the clear.** If you're looking for a clear PLA that can print like glass, this one gives pretty good results. You will have to tweak your printer settings and use 100% infill in order to get there- consult youtube and websites like printables for more info. Some experimentation is probably necessary for this. What I really wanted to talk about is how good this specific blend of PLA is to print compared to most other PLAs I've ever tried. This material is not only strong (bending in the "weak direction" perpendicular to the layers this is only mildly less strong than certain tough PLA+ blends), but most importantly it prints with a consistency that outclasses most other PLAs I've tried. There are two prints specifically that highlight how good this material is for intricate or tough to print structures. A print in place MicroSD box (a popular design on thingiverse and printables), and a replica rollcage. You will notice on these websites that the PIP MicroSD box is extremely hard to print, with many people unable to get the arms to move because they've fused or are dimensionally inaccurate. I had this problem while trying my vast array of Flashforge, Inland, Creality and other filaments, but the one that did work on the first try with zero fuss and no fiddling on my ender 3 V2 was the Sunlu Clear. After printing with default no tweak printer settings, it just worked with the arms freely moving after I popped it off the bed. Similarly, I've had a heck of a time trying to print the rollcage design with other filaments, and even with Cura's revised tree supports they did not come out right. The vertical bars sometimes messed up and either failed completely or looked saggy or goopy. Frustrated after several hours of trying different settings and in particular wasted PLA, I took out the Sunlu Clear and it printed first try, and in fact it probably didn't need any supports at all except for the rear horizontal bars. Basically perfect out of the box. I never had to do anything crazy to print this material, just set the printer to 200 deg F and the bed to 60 deg bog standard settings and just let it go. I have to assume that this is likely because the clear contains less fillers than any colored blend. Regardless, if you are looking to print some complex and tough models, I would recommend giving this a try.

Expectations I have never used Sunlu PLA, and, honestly, I wasn’t super impressed with this particular PLA. It is a capable PLA, but my expectations left me disappointed none the less. I was super excited at the prospect of a PLA that might look a little crystallin or glass like. The term “Clear” in this product description is not accurate, and this may be due to some misunderstandings of what the word means during translation from Chinese to English. What the company seems to actually mean by clear is…”without pigment”. So, what I expected was a material that was similar to glass, with clear (like fiber optics) filament. What I got was a cloudy material mostly opaque, more similar to a glue stick or an Ice cube. It also has a slightly yellow hue to it. The Reality This PLA didn’t look like it was going to look good when laid down on the print, but I was willing to give it a shot. I was surprised to find that the bottom temp printed on the PLA was 200 degrees C. This is usually the middle or near the top of the temp range for a PLA. I decided to do a temp tower to see where its “best temp” was, but, in spite of my best efforts, I was unable to find a tower with temps from 200 to 240 (which is the listed temp range). So, I had to make a new gcode file to print a tower with those temps. The numbers on the one pictured are from 245 (at the bottom) to 200 (at the top) and each level is -5 degrees. My test showed that all levels were stringy except at the bottom of the range at 200. I suspect you could run this filament at 190 or 195 and get even better results, but I didn’t have time to test that theory. The Results This actually was a reliable, nice looking filament. It wasn’t clear, mind you, but it did have a small amount of transparency, and it created a nice, silky sheen on the surface. It lost its yellow hue during the print and had an icy cold look to the color afterwards. I think, even if I hadn’t had that expectation of clear filament, I would have liked a little more transparency to justify calling it a transparent filament. Conclusion Even at 200 degrees, I still got some stringing. It printed fine details well, but did leave some stringing even at low temps. I had no issues with clogging or flow inconsistency. The color was consistent and pleasant, though a bit featureless shade of white. The prints react beautifully to having LED light put through them. I used a display for one print and it lit up like a Christmas tree. But, in regular lighting, I found it difficult to see curves and features of the models. I don’t know if I would recommend this particular filament to someone, but I think the company is taking a lot of pride in their product. The box has a very nice temperature guide printed on it (see pictures). The roll was a good quality spun roll, free of knots. And the filament did print consistently well. I just don’t personally see the color or transparency of the resulting prints as very useful. You can see that the vase turned out very nice, and it has a nice almost transparent look, but there are very few occasions when I will need a pale white, barely transparent filament. Still, this PLA was worth the purchase for vases and some sculptures, and I look forward to trying more PLA from this company. Happy Printing.

Great filament, not too stringy. However, the section between my nozzle and the feeder dries out heavily between print days and typically breaks, so that's annoying. The rest of the filament is kept in a heated container to help maintain the proper climate.