Can we get an update from Bambulab as to when we will see PET-G HF back in stock? What other brand of PET-G HF is there on the market?
Any suggestions are welcome.
I’ve compared the Bambu PETG-HF, Elegoo Rapid PETG and Sunlu Highs Speed PETG. They all print virtually identically but Bambu charges a premium for their filament and has poor customer service and bad shipping terms. With Amazon I get free shipping, free returns and next day delivery. I also have never seen them run out of stock. Someone always has it in a nearby Amazon warehouse.
https://www.amazon.com/dp/B0CJ31Z9XY/
What I recently learned is that if one carefully peels the cardboard off the sides of the spool, the Elegoo inner cardboard spools fit onto the Bambu reels. I don’t know if that is by design but the only thing missing is the RFID tag which one could salvage from a Bambu Spool and just calibrate the filament accordingly. The cardboard spool would be the only reason not to use it in an AMS and this trick fixes that.
In the case of Sunlu, their reals are already plastic.
https://www.amazon.com/dp/B0D9NF7CJF/
I came here to ask the same thing. Wanted to order 20~30 rolls as my stock of PETG-HF is getting low, and there is zero availability of any color on or off the spool.
That said, I ordered a pile of Sunlu High Speed PETG from Amazon just now.
I do really like the RFID tags that the Bambu rolls come with but I guess I’ll survive without them. It does make swapping filaments around in my different AMS units easier and whatnot.
Tape the tags from the used spools onto the outside of the new spools.
Thanks. I bought my x1c after some second thoughts surrounding the proprietary nature of the Bambulab ecosystem. Decided to try it for the convenience of the RFID and profiles automation.
I’ll give Elegoo a try as I had considered a printer from them just before purchasing the x1c. If the filament works well perhaps it’s time to consider a switch of filament away from this type of supply issue with Bambulab.
Polymaker has nice filaments, I like their PETG and PLA Pro. They use Amazon for fulfilment so it can come fast or come used, lol.
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It may be noteworthy than when I got my P1P over two years ago, Bambu was routinely out of stock. Back then you had to print your own enclosure and I could not get white or black PLA for weeks. Bambu unknowingly did me a favor back then. When I was forced to go out onto the open market and venture outside the “approved” ecosystem, I had reservations. To my pleasant surprise, I learned that there are a lot higher quality suppliers out there that had much better customer service, ready supply, better return policies if I didn’t like the filament and most of all free overnight shipping. Since I don’t use an AMS, Bambu labs as a filament supplier is off my list. I now and again try out other of their spools just to see what the hype is about and it is in fact that, hype.
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Can you please share with what profiles/settings you print the Elegoo Rapid PETG? I’ve tried with the Generic PETG HF and the Bambu PETG HF, both have issues. Spent more than 1/4 of one of the rolls on running various test prints (mostly flow rate, with some temp towers, max volumetric speed, and flow dynamics). Have tried all sorts of Max Vol Speed, nozzle temp, and Flow Rate settings… The best I can get so far is 16mm^3/s and 220C with 0.9975 flow ratio, but the temp and max vol speed are much lower than what this filament is supposed to be able to handle… and I still get issues on some corners and small details, but at least the other 95% of the print is fine. Going higher on the speed or temp seems to cause more problem than it solves.
PS The rolls were dried for 18h at 65C after opening and the AMS shows 12% after more than 12h since the drying was stopped, so I don’t think it is a humidity problem.
My Elegoo Rapid PETG calibrations with OrcaSlicer (nozzle temp, flow, PA, max volumetric speed) produced this:
I only have this one spool, and different colors can require different settings.
My notes say that max volumetric speed could be as high as 23 mmÂł/s.
A nozzle temp of 220°C does seem very low for PETG. My calibrated profiles for various PETG brands and colors are all in the 250-270°C range.
I was going to dig for it but I got mine from @lkraus who shared it some time ago. I can attest to the fact that it works well, I do not recall having to tweak it very much. I often times will increase temps and decrease max flow rate just to ensure smoother flow but that does come at a speed cost. That personal preference not needed. I figure the boost I get with speed is enough and I don’t have to be greedy. 
The whites do not print the same.
Elegoo and sunlu and everything else are significantly less white and grayish to the PETG HF.
I have been looking for a PETG as bright, can’t find any. Its very noticeable on my device.
Thanks for the info, I’ll try out the settings. In the meantime, I think I figured out what is causing all my issues… I may still be wrong, I’m new to 3D printing, but when I was doing flow rate calibration I looked for both smooth top layer and no gaps/bulges near the edges/corners, which was practically impossible to achieve. I came across some guides that claimed the proper way is to look just at the top layer smoothness and ignore the edges/corners, because a PA calibration solves the edges. I can’t recall in the end whether I did PA before and/or after flow rate, but I’m now doing some prints with 0.95 flow ratio, 240 nozzle temp, 20 Max Vol Speed, 0.041 k factor. It’s been going pretty great so far with the Grey colour, even on some intricate small models.
I did run a temp tower, but over 240 bridging started to suffer and in a weird way.
Maybe it could use a bit more tweaking, but 240 is within the recommended temps by Elegoo, so I figured close enough.
Thanks. I’ll get a spool on the way today. Then I can figure any settings changes and go from there.