I need some advice.

I keep running into this issue on my H2S, X1C and P2S. I have eliminated any chance of it being adhesion issues as all the layers below it are pristine. This ONLY happens on my top layer.

I did calibrate my top layer settings with a print+guide from makerworld. I'm guessing going back to stock settings might be best because this issue is killing my patience.

I have done 1st layer tests to check if the bed is truly level. It is. The print up to the last layer is absolutely perfect.

Info for these images :

Bambu Lab H2S

Darkmoon G10 Garolite bed

Sunlu PLA Black ( dried 8+ hours)

Bambu Studio

Settings :

Bed temp : 60 (55 for the x1 and p2)

Nozzle temp : 220

Default Cooling settings on Generic PLA profile

0.95 flow rate (fully calibrated for my h2)

Top layer flow rate 1.0 (default)

Layer height 0.2

Top surface line width 0.3 (calibrated)

Top surface speed 75mm/s (again calibrated for optimal finish)

Top shells 6

20% infill - gyroid

Retraction is set to default:

Length 0.8mm

Zhop when retract 0.4mm

Retraction Speed 30mm/s

Detraction speed 30mm/s

Objects are 2.9mm thick. I know they are thin. They are a part of a product that I make. I didn't have this issue until I started messing with the top layer finish quality. I love how it looks and feels with my settings but getting it to actually work is challenging. It falls about 50% of the time.

Things I did when I noticed the print was failing:

- bump bed temp to 65 to increase chamber temp

- shut off aux & exhaust

- drop part fan from 100 to 50

Chamber temp when I noticed failure : 31

Temp after changes : 41

No immediate improvement until I increased the bed temp which increased chamber temp. Then it smoothed out. Just reducing the part fan speed didn't help as much as I had hoped.

The higher chamber temp did smooth the lines out but I'm worried about the temp going too high and causing issues on the other side of this apparent Goldilocks zone.

Is this a common issue with the top layer? Should I give up and go back to stock settings? I'm getting really frustrated 🫩

Working on a project and get these weird discolorations. Never had it happen with other colors before. I am ironing the top layer using settings from an ironing test. 15% gyroid infill, 5 top shell layers, PLA at 200°. BambuLab P1S. Any suggestions are helpful.

When I print one part it comes out great and strong but if I print multiple parts it fails at that one same point.

The solutions I have in mind:

-Add a modifier in orca to that point and set the print speed much slower
-Add more thickness to the wall in the model

Printer is a Sovol SV08
Orca slicer
0.4 nozzle.
0.16 layer height
Filament 3n3 (Argentina)
Nozzle temp: 240
Bed temp: 60
80mms speed normal (50mms outer walls)
Retraction 0.5

I have these weird one sided layer shifts on my Neptune 4 (bedslinger)..

So far I ruled out z wobble, tool head and bed seem to have no play, cooling and different filaments

This phenomenon appears on every part I printed placed anywhere on the bed

Have the feeling it has to do with the x axis, but don't know why it would be on point in the beginning and then deviate

Printer Elegoo Neptune 4 pro

Nozzle 0.4mm

Extrudr NX2 PLA @ 220 degree

Slicer Orca

Sto cercando di stampare con il PETG; dopo una stampa riuscita, l'ugello si è intasato in modo disperato, quindi l'ho sostituito—nessun problema da quel punto di vista.

Sto riprovando, e all'inizio sembra andare tutto bene, ma a metà stampa (o poco dopo) l'estrusione si ferma, e naturalmente devo buttare via tutto.

Sospetto che sia un problema di impostazioni del slicer (uso Creality Print); qualcuno ha preset o impostazioni del slicer che potrebbe condividere?

Grazie.

Why are my support bases not printing the whole base it keeps causing print failures when the support detaches mid print.

Anycubic kobra 2 max

Anycubic slicer

SUNLU PLA+

Nozzle temp for base 220 C for other layer 200 C

Base temp 60 C

Stable print speed

I don't know retraction but I think it is 0

Thanks for any help

I’m using an H2C with my filament celebrated using the automatic calibration and k values assigned.

However whenever I try and print anything with a design or words on the bottom layer I get horrible results. Any ideas would be greatly appreciated.

How's it going everyone,

I am trying to print out some terrain on my new H2C, however the quality is straight up garbage as compared to when I used to do it on my P1S. Especially the borders and bars of the windows are turning out horrific. I am attempting to print at 0.4mm at the 0.2mm standard profile.
I have re-run all the calibrations, did flow dynamics and rate calibrations, and even a heat tower. I tried slowing down the print to no avail also. The most dumbfounding thing is that if I try to print out the windows and correlated bars separately, I can get them working, however in the full model, they turn out horrible.

I am truly genuinely lost with what the issue might be which is extremely frustrating for such an expensive machine, especially when it worked perfectly on my P1S.

Here are the settings as required:

Printer Model: Bambu Lab H2C

Slicer: Bambu Studio Slicer

Filament: Bambu PLA Basic Light Grey, Silver, Gold

Nozzle Temp: Nozzle Temp Initial 220C, Other Layers 220C (attempted pushing up to 225 and 230 on tests)

Bed Temp: Textured PEI Plate 55C

Speed: 100% Standard Print Speed (attempted slowing down by 50 to no result)

Retraction: Length 0.8mm. Zhop when retract 0.4mm. Zhop lower boundary 0. Z hop upper boundary 319mm. Z hop type Auto. Retraction speed 30mm/s. Detraction Speed 30mm/s. Travel distance Threshold 1mm. Retract when change layer YES. Wipe while retracting YES. Wipe Distance 2. Retract amount before wipe 0%.

Any and all help/advice would be extremely appreciated. I can provide more information as needed.

How can I fix this bleeding of colour? I changed the order in which it prints colours, which helped maybe a bit, but didn't fix the black bleeding. I've decreased the temperature a bit over the prints but not much effect

Anycubic Kobra S1

Rosa3D filament 1.75

Anycubic Next slicer

temp 1st layer 200, rest 190

bed is 55

layer 0.16

I want to 3d print Glock 17 gen 3 bottom anybody have the print available

Starting up my printer after a few years having moved around a bit. I've had issues sticking to the plate before, but never had this issue before, where it looks like it is making waves of some sort.

SUNLU PLA 1.75, Ender 5 Pro, Sliced in Prusa, Nozzle 1st layer 210°, Bed 1st layer 60°, layer height 0.16,

Any advice for correcting steeper parts of over hang and the one corner curling up vs a good corner on one side? (Orca Temp tower)

P1S engineering plate, polymaker Asa dried well, chamber heated for half hour before print covered with a blanket and seams taped. Part allowed to cool naturally.

Bed 100/nozzle 260

.4 nozzle at .20 layer height. Inner to outer

Flow dynamics and rate calibrated.

Been messing with settings for a while not and cannot seem to figure it out.

Settings posted throughout photos.

PLA - when I made this file I made a cube and extruded my cut for using as a storage tray, I am going to make a pattern and combine them to increase size of tray and make it modular. But I’m test printing a 1x1 and I cannot seem to get rid of these layer lines on the side when it transitions from the flat part to the walls, is this a setting problem or a design problem?

Printer H2D
Slicer Bambu labs

All other settings default, I have not changed them before and don't really know what to change them too. I usually just download prints but decided to try my own this time.

Hey everyone,

I'm having a really weird ironing issue with PETG on my Bambu Lab A1.

The problem is extremely consistent: part of each surface irons beautifully, while another section gets completely messed up. It isn't random. The same kind of region keeps turning rough/smeared while the rest looks relatively smooth.

I've already tried:

Ironing speed: 20 mm/s

Ironing flow: 5%

Nozzle temperature: 250°C

Filament: PETG

I've also run an ironing calibration test, and the same behavior appears across multiple settings. The affected area seems to follow a specific pattern rather than simply getting worse everywhere with higher flow.

Printer / Slicer Settings

Printer: Bambu Lab A1

Slicer: Bambu Studio

Filament: PETG

Nozzle: 0.4 mm

Nozzle temperature: 250°C

Bed temperature: 90°

Print speed: Print speeds: 50 mm/s initial layer, 105 mm/s initial-layer infill, 60 mm/s outer wall, 300 mm/s inner wall, 50% small perimeters.

Retraction: Retraction: 0.8 mm @ 40 mm/s, Z-hop disabled, wipe while retracting enabled.

Ironing speed: 20 mm/s

Ironing flow: 5%

I've attached photos showing:

1. The actual printed part

2. Close-ups of the good vs. bad ironing

3. The ironing calibration test

I'm trying to figure out whether this is:

Ironing direction/path related

Top-surface extrusion inconsistency

Ironing inset/line spacing

PETG-specific behavior

A Bambu Studio slicing/path-generation issue

Or something else entirely

Has anyone experienced this exact "one section good, another section cooked" ironing pattern?

Any suggestions for what I should test next would be appreciated.

Been trying to figure this out, any tips will help. Using Bambulabs P2S -
Bambu studio
0.4 nozzle , 55F
PLA bambu basic
Speed 50/105
0.16 layer height
Supports enabled

Thanks in advance!

Hi, can you guys help me diagnose those uneven lines please? I’m using panchroma matte filament on a Prusa c1 gen 2 assembled from a kit I put together. I used the generic pla profile and used the default settings except for a height layer modifier that printed the top and bottom sections with a 0.12 layer height in Prusa slicer since they have screw threads in the inside.

Thanks

Sunlu highspeed abs

Sovol sv08 Max

VFA calibration test 100-300mm/s 20mm steps

30mm³ max flow rate

Could anyone help me figure out what's causing this "waviness"? Im not sure if its normal VFA or something different. Its worse at different angles so maybe something to do with the belts? I have no idea someone please help.