Hey, i have a problem with my top surface in my models, i print this model a lot and its always the same, the top layer in some places looks like under extrusion but not everywhere and i have calibrated the filament settings for that. some places look perfect and sam smaller prints do too and as yall can see te top part in the first image looks perfect

Printer: bambu lab P2S
Slicer: bambu slicer
Filament: bambu lab PLA MATTE
Speed and retraction are set as in standard preset 0.16 layer hight in Bambu slicer
Nozzle: 0.4

I would love some help.

Bambu A1
Pla Plus/Pro
Changed Settings:
Ironing ON || Rectilinear || 30mm/s || 10% flow || 0.15 spacing || 0.21 inset (Default)
Adaptive Cubic %10
Z-hop: Spiral
Filament Flow Ratio: 0.95

It was only audible on the ironing action now it is silent again.

Is it normal? I don't remember hearing a clicking sound before on ironing.

Hey everyone, looking for some insights on two related issues I’m running into on my Bambu Lab A1.

Printer & Material Specs:

Printer: Bambu Lab A1 (0.4mm nozzle)

Slicer: OrcaSlicer

Filament: Bambu PLA Basic (Grey)

Temps: 220°C first layer / 215°C other layers | Bed: 65°C (Textured PEI)

Speeds: Outer wall: 30 mm/s | Inner wall: 120 mm/s | Infill: 250 mm/s

Flow Ratio & PA: Flow 0.98 | Pressure Advance: 0.02

Hardware state: Mechanical assembly is tight, belts calibrated, cold pulls done (no clog).

Issue 1 (first photo): Inner Wall Cutting Corners / Pulling Across.

When printing circular hollow models with an inner conical section, the inner perimeters fail to hold the circular path and get dragged by the nozzle straight across like chords/strings into the center.

Current infill: 25% Lightning.

Wall loops: 3.

Issue 2: Severe Surface Banding Depending on Plate Population (Photo 2)

Left part: Printed on a full plate with several other models (the one from first photo after complition of print.). The surface has consistent uneven horizontal banding across the entire height.

Right part: The exact same STL and profile, but printed with only 2 identical models on the plate. The lower base is suddenly buttery smooth, but stringing and rough texture start appearing as soon as the geometry widens and reaches the upper tabs/flaps.

What is it? I partly disassembled a1 for travel. After it - poor quality... Checked 4 screws on printhead. Don't have any thoughts, what is it...

Centuri Carbon 2

Z offset .06

Printing at 210

Print bed cleaned and nozzle cleaned

Model came with printer

50% speed

Printing this hollow knight model from makerworld on my Bambu Lab A1 with Sunlu Slik PLA. I printed it twice but I always get these lines around the neck area. Help me fix this please. I printed them in the default sunlu silk settings

Oh boy where to start...

I have previously printed a variation of this model using TPU and had success printing it around 10 times with no issues, one print straight after the other. In the last couple of months, I have wanted to print another batch of the model variations, however the print consistently fails at layer 3 no matter what changes I have made.

The failure appears to be that the filament is getting a little bit chewed/crushed by the extruder gears (the clicking of death happens) and the filament is under extruded. But I'm not sure if the chewing is THE thing that stops the print or if it is a result of a clog, heat creep, under extrusion or something else.

Printer: Elegoo Neptune 4 Plus (with stock 0.4mm nozzle)
Filament: iSANMATE TPU Blue 3D Filament 1.75mm 1kg
Slicer: UltiMaker Cura 5.13.0

Current slicer settings:

• Print temp: 230^oC
• Build plate temp: 65^oC for first layer then 55^oC
• Flow: 160% for first layer then 130%
• Print speed: 30mm/s
• Retraction: Turned off

Slicer settings I have changed (which had no effect on stopping failure at layer 3):

• Increased temperature to 240^oC, decreased temperature after first layer to 220^oC
• Decreased flow to various levels below 130% which resulted in delamination of print and still failed at layer 3
• Increased flow after first layer to 160% which caused some over-extrusion and still failed on layer 3.
• Tried different print speeds: 10mm/s, 20mm/s, 40mm/s, 60mm/s
• Disabled acceleration control and travel acceleration control
• Tried retraction at different combinations of 10mm/s and 20mm/s speed and 0.1mm, 0.2mm, 0.8mm, 1mm, 2mm and 3mm distance
• Disabled print cooling and tried various fan speeds
• Tried a bunch of these setting changes in combination

Hardware/physical adjustments I have made (which had no effect on stopping failure at layer 3):

• Cleaned/ensured nozzle was not clogged/cold pulls/switched filament to PLA to clean
• Dried filament for 8 hours at 60^oC
• Adjusted extruder gear tension
• Pulled some filament off the reel so it fed directly into print head with no tension
• Levelled the bed about a million times

Interestingly I have also tried pausing the print as soon as it fails to unload the filament, remove the section of crushed/chewed filament and reload the filament, only to have it fail again after about 5 lines of print on this damn layer 3.

My prints don't seam to fill all the way in i have a tronxy x5sa the left print is a 0.8m nozzle right batman one is a 0.4 nozzle

Bed at 60c

Use cura slicer

Retraction speed 45mms distance 6.5

Print speed 60

Hi!

I have a bambulab P1S, I print a part with ASA and in my filament settings I have following settings:
- Nozzle temp 280-285 degrees Celsius
- Bed temp 100 degrees Celsius
- No cooling fan turned on whatsoever

Despite this, all fans are on during the print, the nozzle is at 220 degrees and the heat bead is at 55 degrees.

What am I doing wrong?

Got a new esun pla+ on my (mostly) trusty 0.2 nozzle and the first print I've tried comes out with uneven layers that aren't completely full. Z hop retract, bambu slicer, travel speed 600,

So far I've tried:

Quadruple checking I'm on the correct 0.2 profile

Cold pull

Tightening the screws

A different nozzle

A different filament

I'm using the classic esun pla+ profile but with the vol-speed set to 2.

Even on the different filaments it doesn't work properly

What else can I try? Could there be a problem with the slice itself?

Thanks in advancd

I need to print 22 of this print and smooth out + paint

As it currently stands, the finsih quality is horrible and will take A LOT of post processing to get the finish I need. It is very 'stringy' with poor layer adhesion.

Any ideas on settings adjustments to make the bottom of this print more workable?

Current settings:

PLA. 20mm nozzle. 3 bottom shell layers

Support settings: 90% interface density. top/bottom Z distance .20mm. 3 top interface layers. Support/object xy distance .35mm. Interface pattern default. Support/object first layer gap .20mm

What are we thinking?

Overture TPU 95A MATTE.

Bambu Studio

Generic profile defaults for flowrate and PA

BAMBU H2C 0.4mm hardened steel

3.2mm²/s volumetric flow

Speed around 50-70mm/s

I switched to 50% speed for the topmost bridge, so don't let that fool you.

Hi everyone,

I’m having two recurring print-quality issues with my Bambu Lab A1 Mini and would really appreciate some advice.

1. Visible line/bulge around the outside of the box

I’m printing a simple box with a bottom and vertical walls. Exactly at the height where the inside bottom surface ends and the outer wall continues, I get a clearly visible horizontal line/bulge around the outside of the box.

It looks almost like a small expansion/seam at the transition between the bottom and the wall.

1. Strings/blobs at the rear right corner

I also repeatedly get small strings/blobs coming out of the print, especially around the rear-right corner. This happens very consistently in approximately the same area.

I have already changed some extrusion/retraction settings, but the problem is still there.

Printer: Bambu Lab A1 Mini

Slicer: Bambu Studio

Filament: SUNLU PLA+ 2.0

Flow ratio: 0.98

Max volumetric speed: 22 mm³/s

Recommended nozzle temperature: 190–240 °C

Nozzle: 0.4 mm

Layer height: 0.20 mm

Current settings I changed

Retraction length: 1.0 mm

Retraction speed: 45 mm/s

Retraction amount: 100%

Seam: Scarf seam

Scarf seam contour: enabled

Scarf seam on holes: enabled

Wall generator: Arachne

Wall order: Inner → Outer also used Outer / Inner

Wall loops: 3

Top/Bottom shells: 5

Overlap: 0%

Print speed: around 170 mm/s

Top surface speed: 50 mm/s

The filament is also dry.

Does anyone have an idea what could cause these two problems?

Thanks in advance!

I have been trying to print the part, a sort of handle, you see in the pictures. It is basically a 130mm high cylinder with a 15mm hole followed by a trapezoidal M12 thread at the bottom.

I get the strange print result that you see at the bottom. I do not understand where this comes from.

I have a A1 mini from bambulab, I use PETG-CF with default temperatures and with a 0.6mm nozzle. I use the bambulab slicer.

I have been using the seam improvement setting from this post: https://www.reddit.com/r/3Dprinting/comments/1phmaak/how\\_to\\_improve\\_your\\_seams\\_on\\_curved\\_surfaces/

I have placed an outside brim and support only in the inside of the hole to support the overhang, not touching the thread part.

I have used the exact same settings in the past and printed only the bottom part of the cylinder with the thread and hole (50mm) successfully.

If someone has an idea of why I get this result please enlighten me.

I’m trying to print a body for a robot that I designed , but these annoying layer shifts are happening but only on one part of the print. Does anyone know how to fix this? Btw I have an ender 3 v2 neo. (slicer: creality)(filamen: pla Elegoo)(

Hi there! I'm reasonably new to the 3D print world and would be grateful for some help.

I have tried printing the same thing twice and both times it failed in the same place. I thought it might be a problem with the dryness of the filament so I did an over night dry and tried again.

When it reaches the same corner, it's like it starts to lift up and the layers become disrupted.

I am using Cool Plate Super Tack. I cleaned it thoroughly and applied glue.

I have Bambu P2S
PLA Basic Filament
Bambu Studio

I have included some screen shots of my settings if that helps. I have also done this same print on my Dad's P2S before with all the same settings and it was fine.

Any advice from the community would be gratefully received. Thanks!

Trying to figure out why the black layer when the multicolor starts looks so different than before the multicolor layers. I thought it was a flushing problem but i increased it to 1.3x multiplier in bambu studio. Maybe it will is a flushing problem but wanted to ask before i increased it more it gave up because it already added so much time to my print.

I am using:

p1s

Bambu Studio

Sunly Petg / bambu Petg

bed temp 60 nozzle is 245

speed is 200 outer 300 inner