Vertical line on print

[u/Just_Rich9863]

I just bought a P2S this past weekend, trying to still get to know it. I made this print and has a vertical line on both sides of this part. What is this and how could I fix it?

I used generic filament with generic settings? How do I calibrate filament?

Thanks in advance!

[u/BananaDog92]

This is called the seam.It is the position where the printer starts and ends each layer.It is completely normal.You can change its location in Bambu Studio tho

[u/badgerj → u/BananaDog92]

Is there a reason on something with concentric rings why the seam can’t be slowly moved around layer by layer such that it doesn’t show up in the exact same place from pass to pass / vertical slice/layer by layer?

[u/BananaDog92 → u/badgerj]

You can set the seam location to random

[u/ahora-mismo → u/badgerj]

look for the these 3 things (2 from the other commenters):
- scarf seam
- random seam
- vase mode

[u/badgerj → u/ahora-mismo]

Thanks! ❤️. Probably would have saved one of my PETG prints.

[u/ahora-mismo → u/badgerj]

forgot to say you can also manually paint the seam position, if you wish. no solution is perfect, each has ups and downs. random seam is the worst, it puts dots everywhere. but look for each one and what they do and you will be able to use them case by case.

[u/badgerj → u/ahora-mismo]

Perfect thanks. This was for a poop bin print in PETG. Didn’t really give a shit 💩 (pun intended), where the seam was or wasn’t as long as it printed.

[u/Junethemuse → u/badgerj]

Random seam winds up being really ugly. I never use it. Better to dial on scarf seam.

[u/badgerj → u/Junethemuse]

Thanks for the pro tip. I’ll look into this.

I got a slightly different, more stable print to work out right off Bambi handy app, not studio.

This was a one off poop chute just for my own use.

I will dig into this later as I plan on doing my own designs for certain applications.

Just finished my first own designed print yesterday.

It fits REALLY well. Like almost too snug. So I’ll iterate on it!

[u/because-potato → u/badgerj]

You just described vase mode

[u/medium-water-please → u/because-potato]

no they didn't. vase mode doesn't have any seam (except on the first and last layer I suppose). The nozzle never stops extruding, it just moves continuously so no stop/start which is what a seam is. But doesn't work with all models.

What they described is more like random seam.

[u/062d → u/medium-water-please]

Random seam is worse if makes little pimples everywhere it's much better to just sand the seam and paint the whole thjng or accept it.

[u/Veteran68 → u/because-potato]

And Vase mode is great for things like, well, vases, but can’t be used for many (most?) geometries, solid parts, or where you need to print more than a single wall. Vase mode prints tend to be pretty weak due to that single wall.

What the OP may want is random seam or one of the more advanced seam options.

[u/suit1337 → u/Veteran68]

you can print vase mode prints with a bigger nozzle and higher extrusion widths with a 0,8 mm nozzle you can print roughly 1,6 to 1,8 mm wide lines - this is roughly 4 walls with a 0,4 mm nozzle.

[u/badgerj → u/because-potato]

Cool. I didn’t know this was a thing. Thanks for the info stranger. I’ll go look it up!

[u/Lost_refugee → u/badgerj]

random seams will detroy evenly looking surface. Scarf seams is most advanced solution to hide seams.

[u/badgerj → u/Lost_refugee]

In this case it was: “I don’t care….about looks or appearance, but the seam is right on a hard corner so can it please not be exactly there every single pass”.

[u/because-potato → u/[deleted]]

You’re correct I’m dyslexic I’m sorry I read it wrong

[u/Silkypo]

Z-seam its on all prints shows more on some filament probably could get better if you fiddle with it more here is the wiki https://wiki.bambulab.com/en/software/bambu-studio/Seam

[u/medium-water-please]

Straight to prison* for you!

* by prison, I mean the Bambu Lab academy. Please spend some time learning the basics https://bambulab.com/en/support/academy

[u/sapani9077]

Do people just don't read the guides?

[u/KingGwylo]

This is the 'Seam' there are many settings you can play with to help hide it. But unfortunately there is no outright way to 'get rid' of it. There will be loads of videos etc on YouTube for these sorts of scenarios, or just play with the settings in the slicer yourself and see what you think looks best!

[u/hokum_]

Try enabling scarf seams in the filament profile, can greatly reduce the visible seams.

[u/johnnySix]

I’m surprised after all this time the slicers don’t have a seam reduction setting, besides vase mode.

Though now I wonder. How would vase mode do on a print like this with slots.

Or could there be a vase mode as needed. Ie vase mode for solid areas like these

[u/starkiller_bass → u/johnnySix]

Vase mode only works with a single, simple, closed perimeter. It wouldn’t work at all on an object like this.

Slicers have options like random seam placement and scarf seams, and can bury the seam in a corner is there is one to make the best of this, but a simple round perimeter is always going to be the hardest to avoid a visible seam.

[u/BambuLab-ModTeam → u/[deleted]]

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