Voxelab 3D Printer Filament, 1.75mm PETG CF Filament, Dimensional Accuracy +/- 0.02 mm, 3D Printing Material 1kg/ Spool, Fit Most FDM 3D Printers (Black) (PETG CF, Marsala)

Super strong stuff. By far the hardest filament I have owned or printed with successfully! The specific part I was trying to print with this was a tensioner pulley to mount on the face of my car's engine to secure my alternator in a position better serving the routing of the serpentine belt. This stuff did the best job and the part would eventually fail after a couple thousand miles just due to the heat warming the part enough to deform it slightly causing misalignment. I honestly never expected that good of a result an I now know that this stuff is legit and though it has it's limitations, it still can take a true beating and come out the other side looking good.

The Good:This filament has great bed adhesion and layer adhesion; with carbon fiber added into it, strings and blobs are no longer present. As far as high performance filaments go, this is my new all time favorite; even better than ASA or ABS.The Bad:The color on this filament is somewhat lack luster and can occasionally appear like you have colored it in black sharpie. However, thinner prints allow the true colors to shine through.The Ugly:While the filament is easy to work with, prints well, looks pretty cool, and is considerably durable... You can't use it if you do not have a hardened steel nozzle. Without it, you'll clog like crazy.

Awesome stuff! Worked great out of the package. Also prints even better when run through the filament dryer. Little to no stringing as well

I ordered the black carbon fiber PETG and have been anxious about trying it because I've not tried any carbon fiber filaments and PETG has been a bit of a struggle for my printer. This stuff printed almost flawlessly; my print actually looks better than any other print I've done. There are just two very small spots on the base that make it easy to tell my print is a print rather than injection molding. The rest of the surface is very good and unless you know what a good 3d print looks like you could easily mistake my print for an injection molded part. It's amazing as I'm not particularly good at 3d printing, I've had tons of failures and usually have to fiddle around with new filaments quite a bit before getting good results, this stuff printed fast and was super easy to get going.Honestly, this just became my favorite filament, it looks amazing if you tune your print settings.

Out of the box, I was suffering moderate stringing. 7 hours of drying time in my filament drier and the stringingnissues are solved.I was hoping for a more matte black with the carbon fiber however this is more of a semi gloss to even somewhat sparkly finish. Looks cool, not quite what I was looking initially for but the end result was sufficient that I'll just use it.Nozzle temp 240Bed temp 80 - smooth pei plate6mm nozzle, .2mm layer height

I wasn't exactly sure what "Marsala" color was, but it is a dark burgundy (not brown) for anyone who's not sure from the teeny tiny photo on the app. This is simply gorgeous material. I originally got the Iris Purple, which is also beautiful and printed like a dream too. Tough as nails--and not necessarily in a good way.The one learning experience I want to share is to NOT let this filament cool in a 0.4 mm hotend, but to flush it out with something with a lower Tg, like PLA or PA. I lost not 1, but 2, 0.4 hotends because I couldn't get back to the printer or start a new job before everything cooled off. (Sorry, no AMS and not a FDM farmer here.) Even reheating it could not flush out the plugs that are now firmly--maybe permanently--lodged in the hardened steel hotends. Until I can look into different aftermarket Bambu hotends made with titanium, I think I'm sticking with the 0.6 hotend, which I'm still flushing with cleaning filament if I'm not using the printer for a while. Obviously, the loss of resolution isn't ideal, even with layer height set to 0.16mm. But for now, I'm on a schedule and cannot stop for a new 0.4 to get here. I'll try again later to see if I can recover those hotends and clear the blockage with a butane torch for S&Gs.It would be fabulous if the manufacturer has a warning more prominently labeled somewhere on the box in the future, or maybe include a tiny coil of a cleaning filament with these. I certainly will be buying a reel of cleaning filament now because I got that freebie coil with something else.However, this is still a 5-star product. I already ordered more.

There are some colors that when you print them really look amazing and this does not disappoint. It is absolutely gorgeous. Flawlessly printed everything I needed to, and it looks amazing. Adheres to the plate, prints flawlessly, no stringing, perfect. Durable too.

I try to avoid printing PETG in favor of PLA and ASA, because it's stringy, has a weird glossy texture, has a slight tendency to warp and is difficult to print at high speeds. Yet it has useful properties in being chemical resistant and not as flammable so it's sometimes unavoidable. With the availability of PETG-CF however, a lot of these issues go away or are at least minimized- stringing is gone, dimensional stability is great, the layer lines and weird glossiness is replaced with a nice matte texture, and you can push speeds a bit faster. The Voxelab PETG-CF not only perform great, but they come in two pretty nice colors (Masala, which is like a deep maroon; and midnight blue, a very dark one as shown in my picture) and come in at half the cost (or less) than what you normally find this type of filament for.