SUNLUPETG Filament 1.75mm, 3D Printer Filament PETG, Enhanced Toughness and High Impact Strength, Neatly Wound 3D Printing Filament 1.75 mm, Fits for Most FDM 3D Printers, 1kg Spool, Transparent

The product is good, but the colour of grey shown in the picture is not accurate, the photo picture makes it look lighter than it is.

I have used several reels of Sunlu PETG with my Ender 3 printer and always get decent results.

Only just got my printer and want it for fishing bits and bobs so I used PETG. Maybe not a great way to start as it needs a lot of fine tuning Etc. but I got it in the end until I was half way through a print and the spool locked because the filament stuck! This stopped it being feed and I missed it! What was printed was great and fitted together well but incomplete so I wasted 10m of filament. Hench the 4 stars but I understand I need to respool when this happens but as this is my first and only spool, I have I cannot do that.

The free shipping option was really fast which was awesome. It also came well packaged in an Amazon box with padding, then in it's own box with details about the temperatures this should be printed at and also vacuum sealed which is awesome because PETG is quite sensitive to moisture.First off, the orange was a little darker than expecting but is still a nice colour. I used Cura 3.2.1 to slice all my prints and then printed out quite a few benchmarks, tweaked my settings then printed them out again (the pictures are of the tweaked prints), also i'm using a cheap Tevo Tarantula so if you have a more expensive printer expect better quality. The settings I ended up with were:- Hotend - 235 degrees Celsius- Bed - 70 degrees Celsius- Retraction - 4.25 mm and 40 mm/s- Speeds:Print 45 mm/sInfill 35 mm/sWall 22 mm/s- Cooling 85 % (however I think I may have done something weird with my fans so this may actually be 42.5% not too sure)- Infill 10%I think this is an interesting material because it is relatively new to the 3D printing market and has a lot of potential as it combines the easy printability of PLA with the toughness and strength of ABS. So overall I think the print quality was pretty good, but it doesn't print as easily as PLA because it can warp without a heated bed and I have found it strings more. It is definitely less brittle than PLA though and it much more heat resistant.You are going to want to lower all the print speeds especially infill if you want it to be sturdy. Also some people say that having the nozzle further for PETG is good, but I've found when printing on glass you'll want it as close as you would with PLA to get a nice bottom surface finish (reducing the temperature of the nozzle slightly may prevent it from sticking to the nozzle). Bridging also wasn't as good as PLA in my experience, however this may just be down to my print settings.Whilst I could not directly compare the strength to that of PLA, it defiantly felt sturdy and tough. Overall I think it is a good material, easy enough to print with a few tweaks and can be used for a huge range of applications which PLA isn't suitable for (like mechanical parts, electronic housings, printer upgrades ( due to sturdiness and heat resistance) etc....

Used sunlu petg (black) to print 3d printer parts as well as a single big cubic part (~20x20x20cm).- reel winding: not the tidiest wound filament, but the whole roll unrolled fine.- stringing/blobbing: average-to-high for a PETG. Printing at 235-240C seemed to produce the cleanest results. Can turn messy really quickly though as it oozes easily (but then again, which PETG doesn't)- layer adhesion: no issues there, sticks nicely to itself- bed adhesion: no issues either, printed directly on PEI with bed at 80-85C, held well and separates reasonably easily once cooled down.- surface finish: nice black gloss, can be dulled a bit by tweaking the temperature/extrusion speed- does it jam: with a 0.4mm nozzle not a single jam- is it suitable for accuracy-critical work: I'd say yes for smaller stuff (the 3d printer parts came out just fine)HOWEVER, when printing big flat parts (>10cm) I observed some lifting/warping. Way better than I'd get with ABS on my setup, but I wouldn't recommend this for bigger precision parts. Maybe if I printed with an enclosure on...?- smell when printing: no smell noticed

Definitely need a raft as It’s a bugger to stick,but now sticking,needs speed very slow first few layersPrinting at 235 hotend and bed at 65 ,lower bed temp I find it warps…amazing PTeg 👌

Caveat emptor and all that so I thought I'd take a punt and buy the PETG black (as Eryone's black PETG which I've had a very positive experience with is out of stock). I read the other negative reviews and thought "how bad can it be?". Well, I've just got the delivery and straight out of the box you can see in the photos that the winding of the filament is all over the shop. I've actually got some Prusament that's unwound on the spool and it looks identical so I might as well have just rewound it than bought this.It's corroborated what others have said so I'm taking no risks and popping it in the dryer for a few hours before risking using it. I bought this for a long print and, given the winding, I have very little expectation this will not jam. I'll update the review once I've given it a go in my MK3S+ but am not hopeful. Meantime: look elsewhere.UPDATE: So after 16 hours of drying it has actually printed quite well, so I’ve added a star. I daren’t leave it to print unsupervised due to the winding and the filament is not the cleanest but it’s printing ok. Your mileage may vary.

First time using PETG and I’m thoroughly impressed. I first did a temp tower and then played around with some settings and I’m very happy with the results. Get a few stringy bits but they just brush away with the finger. The result is a lot better than what I’ve had with PLA but that may be down to the quality of PLA, as using what I got with the printer.I’m using glass bed, no glue or hair spray. 80 bed for first layer and then 70 thereafter. 240 nozzle for first layer and 230 afterwards. 30 speed. Very happy with the colour, I was worried it’d be a little translucent but the colour is solid and has a real nice shine to it. Printed on an Ender 3 Pro.