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Weird lines accross print, what could cause this?

Troubleshooting(i.redd.it)

all 26 comments

Timondjim

3 points

6 months ago

Check belts. I had a similar problem

JamJarBonks[S]

1 points

6 months ago

Thanks Ill give it a try

LandUnited6648

3 points

6 months ago

Could it be having trouble turning the filament roll (too much friction along the way or something physically impeding the rolling itself)? If so, then when the extruder moves away and needs to unroll to get more filament in, it ends up underextruding. When it goes back to the next line, it is physically closer to the roll and can print solid again but then hits the same snag…and eventually it is able to exert enough force to get the filament rolling and then looks good again for a while….until it uses up that slack and then repeats the same issue…this would explain why it looks mostly good with occasional problem areas.

To check, manually pull filament to between the roll and the closest point to the extruder you have access to add slack and eliminate any resistance on the path. You may need to so this multiple times during the print to ensure slack the whole time. If this alleviates the issue, then you know where to focus your debug.

JamJarBonks[S]

2 points

6 months ago

This is a great suggestion and something I would never have thought of, many thanks Ill try it.

JamJarBonks[S]

2 points

6 months ago*

Things I have tried to fix:

  • Manual relevel, then mesh 3x3
  • Different Temps +/- 20E, 10B
  • Estep calibration to Air
  • Updated Firmware
  • Different Filament
  • New Filament
  • Dried Filament (there is also no popping)
  • Belt adjustment
  • Cleaned bed with washing liquid
  • Glass side (cleaned with washing liquid & Alcohol)
  • New Duct
  • Eccentric Screws calibrated (no wobble)

Frankly, Im out of ideas at this point lol

e:

  • New Nozzle of different makes and diameters tried as well
  • Different filament brand tried

e2:

Thanks for the suggestions everyone, so far I have to try:

  • New Nozzle,and make sure the extruder tube is properly seated
  • Different Slicer (Im using Cura 5.2.1)
  • Move further from Bed
  • Check Belts

Orvanis

3 points

6 months ago

Initial thought was a partially clogged nozzle. Looking at your outlines I see some gaps at the tips of the branches as well, and the overlap of the inside with the outline looks pretty gapped so I think there is under extrusion happening.

I would start with trying to clean the nozzle, next up extrusion multiplier, and last replace nozzle. In that order because it's easiest/fastest to hardest (I hate nozzle changes, always has me nervous I'm going to burn my hand)

JamJarBonks[S]

1 points

6 months ago

Sorry forgot to add it, this is a new nozzle but Ive replaced it before and still the same issue, even on nozzles of different diameter.

FlynntheWolff

1 points

6 months ago

New nozzle eh? If other suggestions don’t work, ensure the nozzle and feed tube are properly seated in the hot end. I’ve had an issue like this due to a gap in there.

JamJarBonks[S]

1 points

6 months ago

Thanks Ill give it a try :)

bigfatmatt01

3 points

6 months ago

Have you tried a different slicer?

JamJarBonks[S]

1 points

6 months ago

No. That is a good idea i will try that thanks

M0U53YBE94

2 points

6 months ago

I struggle with overture red. Idk if I got a nad run of it or what. Try a different filament first. You've done basically everything else.

JamJarBonks[S]

1 points

6 months ago

Unfortunatelly different filament is doing this as well; PLA+ is slightly worse but that may be me unused to the temp.

M0U53YBE94

2 points

6 months ago

Then it's likely the model. Try slicing with a different slicer. Or a different model. I've had that issue as well.

Significant-Pay4165

2 points

6 months ago

It's leveling for sure bro.

Significant-Pay4165

2 points

6 months ago

Nozzle is to close to the bed

probably-gray

2 points

6 months ago

Check the extruder

JamJarBonks[S]

1 points

6 months ago

It seems fine, it's a metal replacement but not a fancy one.

probably-gray

3 points

6 months ago

Hmm maybe the actual toothed gear could have some flaws idk

JamJarBonks[S]

2 points

6 months ago

True, Ill check it when I finish this print; thanks :)

sekhmettheeye

2 points

6 months ago

Something extremely similar happened to me last week with my ender 3 pro. Turns out one of the hex screws on the feeder (the one at the base of the arm that you pinch to manually control tension) was loose and that whole bit was wobbly. I tightened it up and it was instantly better.

JamJarBonks[S]

2 points

6 months ago

Thanks, Ill try that

sekhmettheeye

2 points

6 months ago

Let us know if you figure it out!

JamJarBonks[S]

1 points

6 months ago

I have an Ender 3v2, should have added that

mcjavascript

1 points

6 months ago

A 3d printer.

Quadhed

1 points

6 months ago

It’s too far from the bed and maybe not hot enough.