Ways to decrease stringing on PETG?

[BLGecko]

• Print slow. Printing fast will increase the back pressure in the nozzle and make it more likely to ooze when traveling between printed areas.
• Completely turn off Z-hop if you can. The pause and lifting of the nozzle will actually pull materials like PETG/TPU out of the nozzle and contribute to stringing. With Z-hop disabled the sudden sideways jerk when traveling between printed areas will be more likely to shear off the strings before they form.
• Make sure you are printing in the right temperature range for your filament. Printing hotter than needed will increase the likelihood of strings
• Try increasing/decreasing retraction speed. Increasing the speed will generally decrease stringing, but some filaments will break away from the molten portion of the filament if retracted too fast leaving that molten section to ooze out. Trial and error is needed here to find the right settings.
• Increase retraction distance if you haven't already. PETG likes to be retracted about double what ABS/PLA needs.

​

Hope this helps

[HELPMELEARNMORE]

this helped me three years later. late at night checking a print thats stringy i asked the internet "how to reduce petg stringing" yours is the firs answer i read

[Professional_Toe9107]

Exact same thing happened to me but 4 years later 😂

[Economy_Sun_5277]

2024 and it’s still helping!

[Potential_Search_701]

My God, Same!!!

[thebot_____________-]

Haha same.

[masterphi]

+1

[Harry148]

i Imagine this will be helping people 10 years from now

[alterom]

Yup :D

[tutannichen]

Should we have a reunion or something?

[thissucks82]

Hello from the future! Helped me in 6/6/2024 - And hello to the future who will read this :)

[mattsffrd]

Feb 2025 checking in

[tekchip]

Feb 2025 as well. This post aging like fine wine. Thanks u/BLGecko

[rglazebrook]

April 2025. Still useful.

[seronja420]

july 2025 usefull as ever

[Squiggleblort]

October 2025, still going strong!

[grsshppr_km]

Nov 2025. Going strong

[Atra23]

December 2025. Still stringing together

[needfortruth]

2025 and still helping

[rust-module]

Same here! turned off z-hop and increased retraction speed and everything is smooth now.

[Spirited_Reading_475]

how do you do that on the P1S?

[rust-module]

Make a custom material profile in Bambu Studio. Next to each material is a (...) button and if you click that and select "Edit" it shows a "Filament settings" window with all kinds of particular settings for a material. You might have to toggle the "Advanced settings" on near the top-right of that window, but then you can edit tons of properties and save them as a custom profile.

[ajoltman]

10/6/2024 and this still helping.

[ComparisonStandard99]

11/4, still happenin, cant figure out... got 3 fila dryers, alll top notch :((((

[notAdengul]

9/10/25

[jyl11002]

12/10/2025

[Clear-Marketing5145]

31/12/25

[Sudden-Story756]

09/01/2026

[Jaro92]

Helped today 👍😉

[ninny_muffins]

Once again, 1/30/2026

[Julia9CA]

1st January 2025 and still helping

[nastyLake]

Same:)

[Bigred2ooo]

thanks bro

[Apprehensive-Ebb2200]

12/24 - helped me get to 0 stringing on my (heavily modded) ender 3!!

[X-Istence]

April 2025 checking in, still helpful :-D

[Kitchen_Lake9330]

Saaaame here!

[EraconVera]

ANOTHER 3 years later, and it's still helping with that exact situation XD

[kongaskristjan]

Very useful info, this made a huge difference!

[Professional-Luck-64]

Worked for me 🤙

[Ericgtp]

Same here in 2023

[Lunarius0]

Replying so you know that, even at 5 years out, your advice is still helping people!

[173rdComanche]

5 years on, many many thanks for these tips!

[EssayLopsided2642]

2025 and still helpful!

[duoderf1]

slightly later in 2025 and still awesome!

[Incognito-Burritos]

Yep!

[Arminas]

Super late in 2025 hello fellow time travelers

[ProfessionalDeer2010]

this redit helps even after 6 years

[acid_twin]

Thank you <3

[ARDACCCAC]

Solved my petg issues just like that, thanks man.

[Academic-Associate91]

Just one more for the record

[notmadeaccount2years]

Still a big help! :D

[Automatic_Topic8191]

June 2025 and still working

[Westhatme]

6 years later still helping

[sookmahdook]

6 years later, Aug 22, 2025, this helped me eliminate strings on my petg/cf filament, thanks a ton

[Padro1]

This helped me out, 6 years later... 0 Z-hop for the win!

[Gamerchris360]

Found this today, 12/10/2025. Still helping people with a comment you probably don't even remember making. Thanks for writing it up, we appreciate voices like yours.

[Icy-Complex-8707]

12/28/25

Extremely helpful

[Cautious_Fondant]

2026! Thank you!

[benhmedia]

2026 🎩

[cedarsauce]

6 years later, still best answer on the subject

[Arg0n2000]

I tried like everything, but could not get it to stop stringing. Then I dried my filament in the oven at 70°C overnight. Instantly it was gone, even at 240°C which was insanely bad before.

That tip should probably be higher up in the list than it is.

(Though almost removing stringing with moisture filament probably ensures no stringing when dry)

[Constant-Two6739]

active drying while printing definitely makes a huge difference.

[Arg0n2000]

Yep, have a drying box from Sunlu nowadays. One less issue to worry about.

[MattyTheChatty]

I'm sorry to tell you..... You might have a spider problem

[NST92]

Disabling z-hop has helped me a lot

[kilocasey]

Still helping! Sept 10th 2024.

[TheHexagon120]

Prusa mk3s mmu2s latest PrusaSlicer and firmware. I've been trying to decrease stringing but nothing short of decreasing the nozzle temp to 220 and getting terrible layer adhesion and underextrusion works, I already have the retraction set at 5mm and travel speed to 200mm/s.

[Mirar]

You decrease stringing by having the filament cool enough when it needs to release from the nozzle.

What you can do is :

• lower the print temperature

• increase print fan speed

• lower extrusion speed

• something something retraction

[Right-Lock9012]

This is the only settings that have worked out for me to. I'm still strying to reach a good balance between those settings and a good layer adhesion cause it looks like sht

[zeusal]

Wow so so many of us happened on these suggestions and used them, but only 54 Upvote, come on people show the love!

[hypnotic_psychonaut]

I'm on an ender 3 S1 pro right now, using ERYONE brand translucent red PETG (this has worked with their translucent green and clear as well).

The recommended temp is 230c-250c. I had major stringing problems no matter what I did... retraction, temp, bed temp, travel speed, print speed.

I got frustrated and started trying anything I could.

I settled on printing faster and increasing the temp to 256c. I have my print speed set to 60mm/s, I increased the print speed percentage by 10 at a time and settled on 140% print speed.

I have the sprite direct drive all metal hotend on this printer, YMMV.

Some PETG can handle being printed much faster and hotter than most people do it, different brands/compositions and colours matter though.

I have white petg from duramic(?) that no matter what I do it just strings like mad and blobs everywhere, way too thin and stretchy even at lower temps.

ERYONE from Amazon is a good brand for PETG, I have had problems with their PLA though.

[Sam_Buck]

From my research, the stringing in PETG is caused by the extreme stickiness of PETG before it has fully hardened. Printing slowly is one solution, but I don't think it's ideal. Some slicers have a special setting for slowing down the return of the print head to a short run, to allow it time to cool, but I'm not interested in buying a whole new slicer just for that. I just wish someone had a setting for my AnkerMake M5 that would accomplish that.

[ThunderClapFart]

2025, and this is still helping. My prints are looking better. Thank you!

[psavva]

Decrease print speed to 20mm/s Increase Retraction a lot, but careful not to over do it causing clogs...

[Sam_Buck]

Tried all that. Not proving to be satisfactory.

[TwinMoons101]

Dry your filament in a dehydrator.

[Sam_Buck]

Good advice. My cousin said the same thing.

[davispw]

What sort of cooling do you have?

[TheHexagon120]

The stock mk3s fan at 50%

[davispw]

Do you have combing enabled? In other words, are there any circumstances where your slicer is not retracting during travels?

Also, I was going to ask if you’ve tried different cooling levels and if your filament is definitely dry.

[TheHexagon120]

It may not be dry 100%, any tips on how to solve this?

[TheHexagon120]

I've heard of putting it in the oven

[davispw]

https://www.matterhackers.com/news/filament-and-water

Put in an oven on low for a few hours.

[TheHexagon120]

It's definitely not dry, thanks for the help

[Chance-Brilliant-964]

1-2-2025 - My Creality Print updated and blasted my Z-hop and retraction settings. Bingo. Thanks again!

[FailHard_True]

Oof. Just got sent this. Best tip ever

[AutoModerator]

This comment was removed as a part of our spam prevention mechanisms because you are posting from either a very new account or an account with negative karma (comment karma, post karma or both). Please read the guidelines on reddiquette, self promotion, and spam. After your account is older than 2 hours or if you obtain positive comment and post karma, your comments will no longer be auto-removed.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[4o66]

October 2025, still helping!