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PetG trouble  

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docsascha
(@docsascha)
Trusted Member
PetG trouble

Used an Rankforce PetG recently and it worked fine 

Last night a started a new print the Opentron Compatible 3x8 Tube holder from printables. 

Printed ist ständig with .2mm hf-nozzle 15% infill no supports

Quite frustrating waking up and seeing this ugly lines an top of every whole

 

 

Veröffentlicht : 18/01/2026 8:58 am
mnentwig
(@mnentwig)
Reputable Member
RE: PetG trouble

Hi,

make sure the filament is dry. Otherwise it's futile. 

Then, check the "speed" view in Prusa slicer. The printer is coming from a slow section, then speeds up and something happens. The question is, why.

Check the filament path whether it moves freely or gets stuck in the PTFE tubes, then snaps loose.

You may be able to fix the symptoms by generally reducing print speed but of course that's just a hack not a solution.

I'd also do a cold pull, check the outside of the nozzle and the extruders (open idler, is there debris inside, is the wheel clean?)

Veröffentlicht : 18/01/2026 10:12 am
docsascha
(@docsascha)
Trusted Member
Themenstarter answered:
RE: PetG trouble

Did retightening of the belt after adjusting it using the Vernier Skew Testing tool downloaded at printables a few days ago. Since Skew calibration, print results where bad at best. Additionally I but the my PetG into my polydryer. 

First print with PLA looks promising, will start PetG tomorrow 

 

 

Do 

 

Veröffentlicht : 18/01/2026 6:57 pm
docsascha
(@docsascha)
Trusted Member
Themenstarter answered:
RE: PetG trouble

Now the PetG results are in.

Same model just changed from PRUSAment PLA to PRUSAment PET-G and troubles are obvious picture

Interestingly there is on line of layer shift and then forward the area of the seam is problematic and quite awfull to look at

Must confess I don't know what's the Problem 

Help would be needed

 

 

Veröffentlicht : 20/01/2026 9:57 am
docsascha
(@docsascha)
Trusted Member
Themenstarter answered:
RE: PetG trouble

After some reslicing and other tempering I tried changing slicing profile from 0,2 balanced to structural and wow, result changed considerably 

 

Veröffentlicht : 20/01/2026 6:02 pm
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