Ghosting or Ringing Issue

[luffypanda15]

Howdy. I’m currently dealing with what I think is an intermittent, but repeatable on certain models, ghosting or ringing issue. I don’t think I’ve had this happen this much before, and not sure what is now causing it.

Example:
Squirtle’s eyes and mouth have obvious ringing.

I’ve done the calibrations for Speed and Max Flow, and Acceleration, along with the others from Teaching Tech.

For the Speed and Max Flow, all sections look fine-ish, but have ringing. 20 - 60, increments of 10

Acceleration
Set acceleration from 600-850, in 50 mm increments, with JD as .02 for all
All sections had the same weird effect which looks like bulging and ringing.

Then tried Acceleration 750 on all, with JD .01 - .06, increments of .01

So I copied brent113’s numbers.
M204 P750.00
M205 J0.02

Baseline cube print looks okay, can see some ringing on the left of the Y. Ignore the weird line as that is when the filament ran out.

I did Maker’s Muse ghosting test. No obvious ringing on the text I think, but some subtle ones of the edge itself, to the right of the logo. Similar to the cube.

Perhaps there’s a wobble on my A350? If I push down lightly on a corner on the bed, is it supposed to go down a little too?

I don’t know what else to try or fix.

Sidenotes:
My A350 is on a Husky workbench, with the snapmaker 2 enclosure.
I’ve done nivekmai’s extra part cooling fan on my v2 print head.

Here’s my current M503

G21 ; (mm)

M200 D1.75
M200 D0
M92 X400.00 Y400.00 Z400.00 B888.89 E224.90
M203 X120.00 Y120.00 Z40.00 E25.00
M201 X1000.00 Y1000.00 Z100.00 E10000.00
M204 P750.00 R1000.00 T1000.00
M205 B20000.00 S0.00 T0.00 P0.05 L3.00 C0.05 J0.02
M206 X-19.00 Y-10.00 Z0.00
M420 S1 Z0.00
G29 W I0 J0 Z7.15000
G29 W I1 J0 Z7.20000
G29 W I2 J0 Z7.20000
G29 W I3 J0 Z7.20000
G29 W I4 J0 Z7.15000
G29 W I0 J1 Z7.20000
G29 W I1 J1 Z7.20000
G29 W I2 J1 Z7.20000
G29 W I3 J1 Z7.20000
G29 W I4 J1 Z7.20000
G29 W I0 J2 Z7.20000
G29 W I1 J2 Z7.20000
G29 W I2 J2 Z7.30000
G29 W I3 J2 Z7.20000
G29 W I4 J2 Z7.20000
G29 W I0 J3 Z7.20000
G29 W I1 J3 Z7.20000
G29 W I2 J3 Z7.20000
G29 W I3 J3 Z7.20000
G29 W I4 J3 Z7.20000
G29 W I0 J4 Z7.00000
G29 W I1 J4 Z7.20000
G29 W I2 J4 Z7.20000
G29 W I3 J4 Z7.20000
G29 W I4 J4 Z7.05000
M301 P13.00 I0.10 D17.00
M851 Z1.00
M900 K0.07

Here’s my Cura 5.1.0 current speeds

[xchrisd]

Hey, i guess you already did this?

Remove ringing by tuning acceleration and junction deviation - step by step guide

Your bed is really flat, very nice. There are a lot people with up to 0.6mm difference from the highest to the lowest spot.

Maybe this helps you:

3d Print Guide_Walk Through

First of all, congratulations to a great machine! If you have any suggestions to this topic, feel free to send me a PM! You are new to 3d printing?- Be patient. The whole thing is very complex and just little adjustments will make the difference from failed to pretty prints. Start with easy, little things to create (1-3hours i would suggest) . Going to print the first time and then getting a 24h print on, maybe failes. There is a lot to learn, if it didn´t work for a long time, cool off a bi…

[luffypanda15]

Yes, I did the acceleration tuning and saw no difference in each section, so I chose an Acceleration of 750 and JD of 0.02.

As for my bed, I’m using a mirror

[luffypanda15]

I’m going to try this on one of my Y rails

Linear Module Loose Procedure

Support has a procedure: https://support.snapmaker.com/hc/en-us/articles/1500000110341-What-should-I-do-when-the-slider-of-the-Linear-Module-comes-loose- I think that it is insufficient and wrote my own. Any reference to Actions is in the procedure on snapmaker support article. In Actions #1, you might as well take off both ends, there’s no way I found to reassemble without taking both ends off. Do Actions #2. Eventually, you’ll probably have to take off the other end, too. And make sure t…

[luffypanda15]

Yup, that was it, one of my Y rails had a wobble.