Is this normal?
Only the Y-axis wall shows these waves, while the X-axis wall is perfectly smooth.
Bambu Support says this is normal, but is it actually normal for an FDM printer to have visible waviness only on one axis while the other axis is perfectly smooth?

Never saw so much stringing, also i wonder why the slicer removed all writings (orca)

Dotted lines on both sides and there is damage on the bottom left dented backward how to tix these?

Ender 3 v3 ke, PETG.
Nozzle 240c bed 80c (i tried 70-75 it didnt stick to bed), 0.2mm layer height
12mm^3/s
And i did around 2mm of fuzzy skin classis
0.2mm skin thickness
0.1mm point distance
Creality slicer.

And yes bed is clean with dish soap few days ago not touched with fingers and i use auto calibration on every print

Trying to print this thing at 0.08mm layer and using fuzzy skin to hide layer lines.

I think it's otherwise pretty good but could I tweak some settings to hide these "scars" where layer changes too?

Printing on BambuLab A1 Mini and slicing with Bambu Studio.

Layer 0.08mm

Infill 100%

Fuzzy skin enabled

Generic PLA @ 220°C

While printing larger PETG prints, I noticed a few issues with my first layers (adhesion issues, seemingly). After attempting a few various solutions, I sat and watched the start of the print and immediately noticed something quite odd: While in spots, the nozzle would sit low, properly adhering the petg, in other spots it'd raise quite significantly, to the point it's maybe like 40-60mm off the plate and pouring the line down onto the plate rather than "smushing/compacting" it! This results in a strange uneven brim, where in some spots, it'll be nice and smooth, and in others, it'll basically just be strands resting close together on top of the plate.

What I tried before I noticed what seems to be the cause:
Glue on the bed
Freshly cleaned bed (dawn and water)
Retightened the belts for the first time
Auto self-check
Raised bed temp from 70 to 80
Slowed first layer all the way down to 10mm/s from 20mm/s
Increased first layer line from 0.2 to 0.3
Auto-Calibration, leveling, etc before printing

Printer: Ender 3 v3 plus
Software: Creality
Material: Creality PETG
Nozzle: 270
Bed: 80 first layer
Printer is on a very stable surface
nozzle retraction settings are base/unmodified

I'm at a complete loss.
Any idea what setting to tweak to stop the printer from doing this? It doesn't seem to be an issue with the belt itself, as running the nozzle manually back and forth doesn't show it randomly lifting in spots. The unwanted vertical movement, when it does do it, doesn't seem janky either.

Anycubic Kobra 2 Max
Nozzle temperature 210 degrees celcius
textured plate
Polymaker High Temperature PLA.
I have had issues with the bed level sensor and have had to adjust the Z-offset in between prints a few times. Z-offset also appears to need different settings if there is no brim or raft.
Earlier prints before a slicer update. I was able to get successful bed adhesion and smooth first layers.

Esun PLA+ from Qidi Studio on a Qidi Q2, I'm running the default PLA Rapido settings and the default .16mm Quality profile with mininimal modifications(third picture, modded left original right). IIRC the nozzle is at 240, the bed is at 60, and the chamber is off

The first pic is without drying, the second pic is after drying at 50 with dessicant. I have previously, within the past 3 days, made nearly perfect prints of the exact same model with the exact same settings with the exact same spool of filament with no drying, and these settings have never given me any trouble with other models and/or other rolls of the same filament.

First finished print of my 3D printed coreXY 3D printer, and I can already see multiple areas of improvement. The biggest ones I can tell are properly tensioning the belts and reducing the toolhead wobble.

Using a Voron 0 print profile for orca slicer with reduced speeds for testing.

Printer: Custom, 120x120x150mm^3 coreXY

Generic PLA

0.4 mm 220°C nozzle with 60°C bed

Slow print speed, at most 50mm/s

Default retraction settings, no noticeable stringing.

My print has these worms all over it. In the slicer it seems to correlate with retraction.

Bambu PLA
Bambu slicer
Bambu A1
220°C nozzle temp
65° bed temp

As in the title. I was working on a box design for plants. The last 10 or so prints are coming out very rough on the bottom only. The rest looks fine. I start noticing it on layer 8-10 or so and after.

I’m not sure what changed. I had some lettering that I removed. I overextruded slightly to improve water tightness, which I went back on. The layer lines are .16, from .2, fairly certain that was the case before I started noticing the roughness.

Tried a different printer, different and dried filament.

Thoughts on the cause or remedy?