3D BEST-Q GF-PETG (Glass Fiber-infilled) Black 1.75MM 3D Printer Filament, N.W. 1KG, Higher Hardness Than Petg (Black）

UPDATE: After contacting the manufacturer/seller about the strong odor, they agreed that it should not be a strong odor as I smelled, and sent me out a free replacement immediately. I received it today and will try printing with it again soon. I don't want to break the package seal until I'm ready to use it. I will update my review again once I have tried the new spool, but the seller customer service was great and concerned with customer satisfaction. I hope the odor was a one-off, because it is a great filament otherwise.NOTE: I would highly recommend buying cleaning filament (I got mine here on Amazon) to clear out your nozzle when changing from this (or any abrasive) filament, and of course, use a hardened steel nozzle. Any filament with fiber fills (and even powder type fills as well) are very abrasive and can leave behind some buildup or traces in your extruder/nozzle assembly.First off, I'm giving this a 4 because of one basic misrepresentation in the description; the odor. It has a strong odor when printing. Even from loading it at 220c. I print enclosed with an air purifier on max right next to it, but the odor is definitely strong. As strong as ABS in my opinion. I had to double check that it wasn't ABS that I loaded. It could just be the CF fill. I will contact the seller about this and update my review.That aside, I'm currently doing my first print. So far, with 275c nozzle and 95c bed, 0.4mm hardened steel nozzle, FF Guider 2s HT hot end, and no cooling, it's coming along great. I see no signs of warping and layer adhesion seems great. I will update after the print, but I wanted to get the post about the odor right away. Definitely suggest ventilating the area.

I've gone through a few rolls of this filament, but I've had so many functional parts break prematurely that I won't be buying any more. There's no comparison between real polycarbonate or Polymer PC Max and this when it comes to part strength. I'm currently replacing some parts printed in this with standard ABS.This filament needs to be printed very hot to get even decent part strength. It is also very sensitive to cooling fan, and should be printed very slowly with little to no part cooling. Parts with thicker cross sections seem to do fairly well with this, but anything that is thin-walled will be prone to premature cracking along layer lines. The one thing that I will give this filament credit for is exceptional surface quality, along with good bridging. It produces some really beautiful parts, but you really can't rely on them to remain in one piece.

I wish I had read more reviews before I purchased this filament. I learned after getting a couple of successful prints, but mostly struggling with it, that my extruder can't get it hot enough to print well. By the information on the spool, this filament is within my capabilities, but others say that rather than the 255° (or 245, I forget,) they print at well over that. My printer can only handle 260°, so I'm out of luck. I did get a few smallish prints out that look very nice, and are extremely tough, but I do so wish that I had known I should be looking for something with a lower extrusion temperature. I also have a huge warping problem with this filament, and through running the entire spool I never got it figured out. I could be dumb though.

A slow print with this has given me very detailed prints.I use a thick layer of NANO Polymer Adhesive at 60 degrees on a glass bed.It sticks well and takes no effort to release it.

If you worried about it sticking to the bed - don't. I actually had to replace my PEI sheet on MK3S bed after my first print and that was without any type of ABS juice, tape, glue or anything. I actually use tape now, not to get it to stick, but for ease of removal. Make darn sure you let us cool down to ambient or you will destroy your part and bed trying to remove.The strength is awesome. I would venture it is stronger than Nylon 6 and quite a bit more than ABS. I have abused it, beat it, bent, stretched, smashed and it handled it all in stride. I print with an initial setting of 268/100 C nozzle/bed temp, going to 270/110 after the first (3) layers. that seems to go on well. I love this stuff. It is pricey, but once you learn how to work it, it makes extremely durable prints. Just keep it dry!!

99.9% sure it's the same as Priline. Label is the same, smell is the same, and same print settings gives same results.... fantastic looking durable parts. Would give 5 star if they said it was a PC blend, prints too low for pure PC.270/80 and 50mm/s on a Monoprice Maker Ultimate with garolite bed gives the pictured results.

I don’t see a point in this filament compared to your standard abs filament. The assumption I had when ordering is I should see an increase in part strength but that is not what I experienced. I’m not sure I’ll even waste my time print the rest of this roll.

Our company has been trying a MYRIAD of different types, brands and styles of 3D filament for more than a year in our efforts to produce a reliable marine propeller for inclusion in a product that we manufacture. We have tried PLA. PETG, Nylon, acetal, ABS, straight and/or infused with glass, carbon fiber, etc. -some of these "specialized" filaments were almost $100/spool. We tried numerous printing variations with each filament too. During testing, all of the other filaments we tried, either the prop's would immediately blow up or would eventually fail via cracking or breaking along print lines. Nothing was working.We FINALLY found 3D Best-Q carbon infused polycarbonate. It's tough stuff. Pretty easy to print with and the side benefit is a really cool- kind of, "ominous" matt black finish. If you been tearing your hair out trying to find a filament that's truly exceptional, try this!

The media could not be loaded.  Totalmente satisfecho con este filamento:Imprimí con 26º boquilla de 0.5mm96º cama caliente y sin ventilación.Se pega super facil a la placa y se despega sin ningin problema,es un material super resistente y super amable, desprende un ligeroolor quimico, me recuerda a la pintura vinilica y también desprende ese oloral abrir la bolsa.Venía sellado al vacio 100% y francamente estoy encantado con este material.Muy agradecido.