ACE Klipper Question

Sovol SV06 ACE
1

I’ve been printing these on my A1 Mini without any issues. I need about 20 more, so I printed 2 of them on the ACE. Two different filaments (PETG) with 2 different profiles & they both came out the same.
They will still work for my project, but I would still like to remove the banding.
Also, you can feel the banding with your fingers. Both are PETG.

A1 Mini: Bambu PETG HF

PXL_20241209_171537786
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SV06 ACE: Bambu PETG HF (Custom Profile) & Bambu PETG Basic (Generic Settings)

PXL_20241209_171556988
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Thanks

EDIT: This is not just a PETG issue, it’s all filaments.

2

Hi,
What is this, we see just a red square ?
Just the first layer ?

3

No, that is 6" tall. If I showed the whole print, you wouldn’t see the banding.
But, since you asked.

PXL_20241209_174750630
PXL_20241209_1747506301920×1442 195 KB

4

This is a known issue using threaded rods for Z movement/position, try fine-tuning linear advance for that particular filament/temperature on the ACE

5

Thanks, I’ll look into it.

6

@gerrycave1
Which line setting would you choose… 0.025 ??

PXL_20241214_032045811
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7

oof, hard to pick, but I think 02 is a little better, less bulge, if only a bit?

Again, try it, should help things for sure, but Z banding artifacts have been blamed on many things:

… double geared extruders (FYI - A1 is single geared with an idler)

… threaded rods…

… wet or inconsistently extruded filament

neither of which can be changed easily on this printer. Maybe try lubricating rods, and the metal wheelrails?

1 Like
8

I still can’t seem to fix this issue.
I was slicing files today & decided to go through the slide settings, when I got to Speed I saw banding. Now, I’m confused as this would no longer be a mechanical issue.

Speed
Speed1241×923 135 KB

9

are the bands corresponding to internal supports or something like that?

Can you please share some other specs? how many walls? wall order inner/outer/inner walls? or outer/inner?)? is it the same banding artifact on the X or Y print axis? is there a distance measured between the banding re-ocurrs, or is it totally random?

10

No supports on either model.
Banding is on the Z.
I removed the Rods & they are not bent.
I removed the Z Rod Bearings & re-printed the file, it came out the same.
The banding is 4mm in width.
The print is better towards the bottom 10mm or so, then the banding shows up for the rest of the print.

11

Also, what infill !!!

I see the same speed banding in the slicer, but varies with the infill used… gonna try to print a simple rectangular object with lighting infill, to see if the banding is inherent to the mechanic output.

I was also looking over the printer step file, and seems like it would fit Oldham couplings, like the style used on the Ender 3.

12

so, close to the bed, looks ok, but fat from the hotbed heat, issues start… mmh… sounds familiar, but I can remember where I heard about a similar issue…

13

Infill in the red model is Gyroid, the sliced model was Cross Hatch I think.
Number of walls don’t matter, if I can’t see it I can feel it.
The gap in the Z-Rods is 2mm.

I wasn’t thinking it was the extruder, but know I’m kinda leaning that way.
The only other option is it’s something in the ACE Orca Profile.
I sliced & printed plenty of models and depending on the geometry sometimes it’s hard to find.
It’s mostly noiceable on straight objects.

14

Well… will try some tunning, but this is basically an empty tower, seems mechanical to me.

IMG_20241223_231059870
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15

Thanks for testing this.

EDIT: My previous post was in the wrong thread.

16

Wll, that was just a cubed tower I made on the slicer directly, and yes, there’s clearly banding.

If you share the STL I can try it (I would day the g-code, but I don’t have a clearly colored PETG to try, only black)

17

I printed the model in PLA to check if it was just a PETG issue, but it banded in PLA also.

18

Hi,
I printed this model in an enclosure in PLA+ with the default settings.
No more banding.

20241230_215859
20241230_2158591920×2559 260 KB

19

Banding doesn’t show on all models.

20

Probably, but it’s a vertical triangular tower.
Almost the same as vertical square tower shown by the other user.
A toy piece that my grandson lost.
The walls are particularly smooth. Very happy with the result.