SUNLU High Speed PETG 3D Filament 1.75mm, 30mm/s - 600mm/s Print Range, High Flow Speedy 3D Printer Filament, Fit Most FDM Printers, Dimensional Accuracy +/- 0.02mm, 1kg Spool, (Green)

I'll start by saying I had extremely low expectations for this filament. I print exclusively in PETG, and lately, Bambu Lab PETG HF has been my go to option. It prints extremely well and isn't hard to achieve great results. ELEGOO Rapid PETG is okay, but it's nowhere near as good as Bambu Lab. I have just been using it as it is the cheaper option when bought in bulk.Then, I came across this High Speed PETG from SUNLU. I really like the matte look of Bambu Lab PETG HF, and it appeared SUNLU would be a closer match than ELEGOO, which is far too shiny for me. I bought the 2 pack in black. Ran a test print without drying and then after drying. There was a noticeable difference, but it wasn't bad straight out of the packaging. All of that was on the profile for Bambu Lab PETG HF. When I changed it to the Generic PETG HF profile, things got even better. See photo.I'm now disappointed that I put in an order for four more spools of Bambu PETG HF just before buying this filament. Once I use that up, I will only use SUNLU High Speed PETG for black and white. The pricing for the other colors is a little too much still, and my one real gripe is that they do not have a light gray. That is the color I use the most. If SUNLU carried that and sold it in bulk, I probably wouldn't have to rely on Bambu Lab for any more filament.

The color is vibrant, consistent, and looks amazing on finished prints—exactly what I was hoping for. It has a smooth, rich tone that really pops, whether I'm printing small models or larger pieces.Print quality has been excellent. The filament feeds perfectly with no jams, and layer adhesion is solid. I’ve had zero issues with warping or stringing, and the surface finish is clean and professional-looking every time.It’s clear this is a high-quality filament, and it’s become my go-to for any projects that need a bright, eye-catching pink. Highly recommend for anyone who wants great results and reliable performance!

This worked great on my 3D printer, I get great quality prints all the time and they are very sturdy parts after they are printed, love this company and will stick with only Sunlu HS Filament from now on.

Prints just as quickly and easily as PLA with a really nice matte finish you don’t normally get with PETG and with the durability you would expect out of standard PETG. Only taking off a star because the spool did come pretty wet and had to be dried before I could get good results which I haven’t had an issue with other brands. Ordered two spools in different colors and both had this issue.

Want a close match to Bambulab PETG HF black but it is out of stock. Well this is not only cheaper but it also prints and looks identical and it comes with a spool.I used the Sunlu PETG preset that is in Bambulab studio and didn't have to tweak anything, just make sure just like any other PETG that you dry it well. Personally I do 8 hours at 65C in the Sunlu S4 dryer.

Prints and looks 95% like Bambu PETG-HF on a P1S. Bought it with low expectations just because the Bambu PETG-HF wasn't available. Used the same print profile as the Bambu HF version with few modifications:Profile: 0.2mm StandardSpeed:Initial Layer: 30mm/sInitial Layer infill: 105mm/sOuter Wall: 80 mm/sInner Wall: 220 mm/sSparse Infill: 200 mm/sInternal Solid Infill: 200 mm/sTop Surface: 180 mm/sSlow down for overhangs: checkedLowered travel speeds for normal printing to 6000 from 10000 and most other speeds lowered a bit.Bed Temp: 75cInitial Layer Nozzle Temp: 230cRegular layers Nozzle Temp: 247cNo stringing, no adhesion issues, absolutely perfection. Even shine and color looks like the Bambu.ATTENTION: DRY IT BEFORE! I dried it 14h in the Creality Space Pi on the PETG profile prior to printing.For the price, especially if bought in the 4 pack, this is half the price of the Bambu for pretty much same exact quality.Yep, I'm switching from Bambu to SUNLU High Speed.One thing to note is that the filament is a touch dirty compared to the Bambu - nothing crazy, but you can see some specs of dust here and there - nothing crazy though and similar to Polymaker, for example.

I'm a big fan of Sunlu's PLA for its printability, so I decided to give their standard and high-speed PETGs a try. I'm very disappointed by the high-speed PETG. It prints more easily than standard PETG, but the results are far worse for PETG's intended use.I've printed a handful of items in the blue high-speed PETG and found that the layer adhesion is worse than standard (glossy) PETG. It is also far stiffer than standard PETG, leading to increased stress on individual layer lines and far easier breaks. Standard PETG has a slight amount of give to it, and takes enormous effort to break; this high-speed PETG has almost no give, and breaks fairly easily.I've attached a picture of an item printed in high-speed PETG that I was able to break with my hands. I printed the same thing in PLA and it seemed like it was just about as easy to break it. Drying is critical for successful PETG prints, so I'll note here that I had dried the filament for over 16 hours at 50C prior to printing.The point of PETG over PLA is to provide durability for functional items, so I do not see a point in buying Sunlu's high-speed PETG.Update: after printing some more with this filament, I am reducing its rating to 1/5. It has consistently poor durability. I've also found that the "red" is salmon, not the red shown in the product image. This is a trash filament and a complete disappointment given that I've had good experience with most of Sunlu's PLA and 'standard' PETG.