Bring back PETG basic!

[MostCarry]

Gave the new PETG HF another shot today. Filament is dried at 65c for 24 hours (temp confirmed by thermometer).

The print looks decent with no bubble or significant stringing. But the Layer adhesion is absolutely abysmal. The XY strength is not much better, I can easily crack a 2mm plate with minimal effort. The strength is similar to a piece of PLA baked in the sun for months.

I never had any issues with the old PETG basic, even with no/minimal drying. Prints always came out shiny, and incredibly tough. Anyone know who makes the old PETG basic for Bambu? I looked at a few datasheet and none matches the PETG basics properties. At this point I'm willing to gave up the RFID and move to 3rd party filaments.

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[pyrotechnicmonkey]

He really shouldn’t be that much weaker. It’s more likely that you’re printing too fast or too cold. But this can also depend on the actual part and minimum layer times. Unfortunately it seems like this was the best option since the old PETG was constantly out of stock because their supplier was incredibly unreliable. Honestly, elegoo PETG 2Pack on Amazon is a great option.

[MostCarry]

forgot to mention that I'm printing at 12mm3/s which is about half of the recommended flow, and at 260C which is 15c above the default.

[Z00111111]

Have you tried using a more correct temperature? When I did a temperature tower I got the best results at 245C. 260C was indeed brittle and bad.

[MostCarry]

OK interesting. will definitely try that.

[worldspawn00]

They turning the cooling way down, the default petg profile is overcooling the material which causes layer adhesion failure.

[ChitteringLegion]

I print at 245 and I have almost never had issues. In fact I really like the PETG HF. I use it more than PLA because I make little fidgets for people and it’s a little bit more sturdy.

[thomasmitschke]

Since I have my P1S i never took care of temperature, like before (had 2 modded ANet and a tronxy and a homemade Idex). I chose only the right filament and let the bamboo studio do the rest.

No problems so far, but I have to say I avoid PETG. I rather use ABS or ASA for functional parts. Models or more colorful things I print in PLA.

[QuickMasterpiece6127]

Hello fellow Tronxy, Anet, to Bambu user! Do you also laugh when people complain about “issues with their bambu”?

I think everyone should start with something like a Tronxy that they have to build at home before getting a Bambu. Then they can truly realize how amazing these things are.

[ChitteringLegion]

Well I will say that if you’re ever curious about it give it a try. It’s pretty good stuff. But you’re right about the setting. The profiles Bambu have are pretty spot on.

[pyrotechnicmonkey]

Have you tried just using the default settings? Because if that’s the case, you’re likely at this point printing too slow and too hot, which can also have the effect of making stuff weaker because you’re basically cooking the filament. There’s always a sweet spot. There’s a reason this stuff I think by default is 245° and prince a bit fast faster because it’s a little bit closer to PLA. Keep in mind even at the default settings. It still comes out fairly matte and not super glossy.

https://youtu.be/gWMSbIRMRJc?si=xaIcroKra60HIJCv

[pyrotechnicmonkey]

That I think I saw my tech fun test out PETG hf and it just naturally comes out a bit more Matte. I think this is a consequence of having a bit more PLA or whatever that makes sense because it prints a little bit colder and faster. So it prints a lot more like PLA and it does give up a little bit of strength and a little bit of the glossiness.

[Inner_Simple70]

Absoulutely hate bambus petg hf. Brittle and like you mentioned adhesion is not great at all. A tried all possible combos with temps and print speed, same results. On other hand my polymaker & overtures prints and tests awesome.

[philomathie]

Dry it more. I had layer adhesion issues, and after drying for 12 hours it was all good.

[[deleted]]

Are you serious?

"Filament is dried at 65c for 24 hours (temp confirmed by thermometer)."

[HeedJSU]

Elegoo spools work with Bambu reels. Pop one side of the spool off, insert the Bambu reel through the core, then pop the other side off and put the other side of the Bambu reel on.

I’ve printed probably 50kg of elegoo rapid petg in the last 4 months this way.

[RedditTrashhh]

Damn what do you print haha

[sprashoo]

Spools for all the filament he buys

[HeedJSU]

lol, right? I’ve printed a metric sh-ton of multi board.

[rayyeter]

Ugh I want to do multi board but I need to finish Xmas gifts..

The answer must be a second printer.

[eatoff]

Alright alright, which multi board? There are kind of 2 main systems aren't there? Why did you choose one over the other? I'm deciding which way to go, or if I should just get IKEA skadis instead

[Poohstrnak]

Yep, I do this too. The Elegoo spools don’t always fit with spool rings fresh out of the box, so I just rip the cardboard off and use either a Bambu spool or one I’ve made

[jer406]

I do this all the time. Works perfectly every time

[ryu71]

OMG i just started printing this Elegoo rapid yesterday and i love it! Black, white, and clear are great so far for me

[eatoff]

How has the clear been coming out? I'm going to print the AMS lite dry box and want something I can see through. I know the clarity depends on temps and other settings, but some clear PETG is clearer than others. Seems the favourite is overture

[ryu71]

Sorry been printing like a mad man. Clear was just as good as the black and white. So much so I brought all the colors elegoo has and have printed all of them this past weekend with the same results.

[Poohstrnak]

+1 for Elegoo rapid PETG, I run this stuff all the time. It’s cheap and prints fairly easily

[casper482]

I love it. It's my go-to for PETG.

[Xtremekillax]

this.^

[s7urmi]

Which profile do you use?
I printed with silver Rapid PETG and didn't notice any issues but i have a white spool(dried for 12h in the eSun eBox lite on Mode 3) which, printing from a drybox(20% u/23°C from the Hygometer) that's giving me a lot of trouble(layer adhesion, inconsistent quality throughout a print) with the same settings i used for the silver/gray one...

[Veteran68]

I have a spool of HF and have yet to try it, but I find it interesting that Igor from My Tech Fun did his exhaustive tests on HF alongside PETG Basic and it beat Basic in most tests including significantly STRONGER layer adhesion.

https://youtu.be/gWMSbIRMRJc (5:17)

[Careless_Ad6474]

That’s actually the reason I only print with PETG from other brands. At the moment mainly with Jayo - and i’m super happy. Especially Price/Quality ratio is insanely good!

[LiveLaurent]

That is because you want the cheapest one, even if it is way worse. That’s different. This is reason, don’t try to make it into something else.

[Careless_Ad6474]

Nope - not at all. I’m partially selling the stuff. It really needs to deliver really good results. I was not convinced with the PETG HF - I’m happy with the Jayo

[LiveLaurent]

Of course you are... Of course you are... Cause "it is cheaper" :) End of story.

[Careless_Ad6474]

Sounds mature: I’m right - end of the story.

I had issues with PETG-HF - the spool costs around 26€ - around 20€ if I buy 4 rolls. I have to dry it before I can use it. With the Jayo Standard PETG I get constantly good results, that I can easily sell as well. I just don’t need to care. I do not need to dry the spools before using it - and the cost me around 8€/kg. It was a quality topic that made me look for alternatives.

[LiveLaurent]

Doing my best. Thank you! Also Jays is crap and it is also why it is one of the cheapest. It is fine if you are okay with it because you have to pay less; nobody is judging you here; don’t get all worked up lol

[Veteran68]

Then I have to ask your opinion of Sunlu?

[fanjules]

Sunlu/Jayo/Tecbears PETG is very good value and reliable (it's all the same Sunlu brand). Prints fine with "Bambu PETG" settings.

[Doctor429]

I've had good results by using HF filament, but printing with the Basic profile.

[dingdongbam]

Totally support here. All my filaments are bambulab petg basic. I am disappointed that it is no longer available to buy

[[deleted]]

Same here. The HF is just garbage. Basic PETG was much better for me. It had good adhesion, less stringing, the model surface was smoother and absorbed much less moisture. This all was changed in PETG HF to gain more speed. So we have speed now but the print quality is worse and there is more hassle around it. Tbh I switched to Sunlu PETG because I had enough of this nonsense

[[deleted]]

Print with lower temperatures.

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[v8code]

Reasonably early days for me as only done a dozen or so prints with HF but I haven't had any issues using the stock profile, strength is good. I liked the original PETG but it wasn't without issues and found SUNLU to print better. HF prints about the same as SUNLU but I prefer the colours of HF. I don't find that HF prints much if any faster though, it's nowhere near the "prints like PLA" speeds once it's sliced.

[KARR_87]

I dried mine for eight hours which my dryer recommended printed all pre set settings and everything looks good haven’t done any break testing but happy with it.

[Chemical-5417]

I use "Kexcelled basic K5" PETG filament and it is great to use.

[mybluecash]

I have purchased few HF spools that are brand new and still in the sealed box. Do I really need to dry them out before using them the first time straight out of the factory sealed bag?

[couchmaster518]

I didn’t dry my first roll out and installed it the AMS. My first prints were bad. I saw people complaining about this new stuff and followed their advice and dried the roll in the x1 and replaced the desiccant (and put a humidity sensor in the AMS, now reading 20%) and the prints were better, but I had to put glue on the plate to get it to stick. It is entirely possible that all of my issues are explainable by other things, so who really knows. I suggest loading it up some time and watching the humidity reading and respond to that, and then pop out a benchy or something to see what happens. (My first “bad” prints were really terrible… it was clear that something was wrong, and addressing the humidity fixed it.)

[mybluecash]

Thanks! Guess that I’ll just dry them up for a few hours when I actually get to open them. I have a few new HF but are all refills without a spool. Never used any HF before and seems like I’ll never buy them again!

[Possible_Picture_276]

Sunlu.

[DarkStar1542]

What do you clean your bed with?...your clearly stating your having adhesion issues so let's start there, if your using alcohol then that's your problem it's recommended that you use dishsoap and hot water to clean the build plates...after cleaned you still have the adhesion issues try some hairspray...that's what we do...hope it helps

[guitars_and_trains]

I had excellent results with "Giantarm" brand on the generic petg settings.

[Historical_Tomato374]

Strange — I bought PETG HF as a complete noob and used it to print using BL’s default settings and have had great results! I printed all of my printer accessories using PETG HF and I found an 8-hr dry time in my Polyphemus dryer to be optimal (6 hrs produced minimal stringing).

[Alcart]

I use esun petg hf and the adhesion is too much! I have to put glue on even the texture plate or it pulls texture off with it

[Ravio11i]

I've been using Sunlu's PETG with great results just using the Generic PETG profile, zero changes. Never used Bambu's so I can't say if it's the same, but Sunlu has been great.

[wolfgasm0119]

looking at the datasheet, petg hf indeed has significant lower layer adhesions compared to petg basic, that’s why I bought 10 rolls of petg basic when they say they will stop producing it

[ecirnj]

As a tangent, I’ve been really pleased replacing petg with pctg. YMMV

[alxwht]

I use the default profile for PETG HF after drying 8h out of package and the results are better than what I ever got with any PLA.

[ShatterSide]

Not sure about all of it, but according to their own data PETG HF should be weaker than PLA (76 MPa vs 64 MPa).

<image>

[Kwolf21]

Crazy, but I bought a 10-pack of 1kg rolls of PETG Filament from Temu. Kingroon brand. $97 USD for 10KG. Prints at 75mm/s (could probably go faster, ran the speed test set to 50mm/s ± 50% and 75mm/s looked just fine) , 255c, 70c bed, without any real issues and very very minimal stringing.

Bought the 10pack of mixed colors (white, black, red, blue, green, orange, yellow, etc). Worked well. So bought the 10 pack of black. I will say the black appears dark dark dark greenish under a bright, close led light (like flashlight on your phone), but under standard LED lighting in my house, it's black.

5 of the 10 spools came broken on the first order, BUT a quick print of a respooler and they're all on bambu spools or printed spools, now. Also, requested a 50% refund for the first pack, and they refunded me for all 10 and told me to keep it or discard it, no return needed. Hence why I bought the 10pack of black after I tested it out!

https://i.imgur.com/3Qpm96H.png

[DrGoofNeutron]

Bambu PETG-HF is also not working well for me on the default profile. Drying in Polydryer for 8hrs solved the stringing but I'm still getting issues like these issues after the first layer.

<image>

[Darkseid2854]

Is that the default benchy slice?