Poor Wall Quality | VORONDesign | Page 1

alpine path Mar 15, 2024, 2:28 AM

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Im having an issue with wall quality. My 2.4 is printing walls that look over extruded but I have my EM dialed in. I first thought it was a extruder issue so I tried CW2, G2E and an Orbiter all with the same results. The walls are not flat and they are bulging. I have tried External walls first with no change. I see there is VFAs in my prints but it doesnt really explain the poor print quality. Im assuming its a mechanical issue now. With that in mind, I fully rebuilt the printer from the frame up. My Gantry has the tiniest amount of racking like less then 1mm on the right side of the gantry. I have made sure the AB belts are tight and even at 110Hz. That being said, im not sure where to go from here. If anyone has any suggestions, it would be greatly appreciated.

neon canopy Mar 15, 2024, 9:22 PM

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have you tried a different brand filament? Also, did you tune pressure advance?

alpine path Mar 15, 2024, 11:50 PM

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Yeah it happens will all filaments. PLA ABS ASA PETG. Yeah I have lol. I printed the PA tower just to have flat sides to post pics of

supple cypress Mar 16, 2024, 3:09 AM

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alpine path Im having an issue with wall quality. My 2.4 is printing walls that look over ex...

Those diagonal lines really do point at a mechanical issue with the rotating parts in the extruder. Have you tried a tapered part? Something where layers change size as it prints. If those diagonal lines become curves then it confirms it being an extruder issue.

alpine path Mar 16, 2024, 2:37 PM

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supple cypress Those diagonal lines really do point at a mechanical issue with the rotating par...

I haven't tested a tapered print. I'm not doubting you, but what are the chances that it happens with 3 different extruder? All with the same result.

supple cypress Mar 16, 2024, 4:36 PM

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alpine path I haven't tested a tapered print. I'm not doubting you, but what are the chances...

Honestly I agree with you and the chances are almost zero. The issue is I don't know of any other mechanism that could cause those defects.

alpine path Mar 16, 2024, 4:52 PM

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I'm not sure what to do from here. I've been over the printer about a dozen time with nothing obvious that is wrong. Very confused on this one.

spiral jasper Mar 16, 2024, 5:10 PM

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What infill do you use? -> Does the pattern change if you change infill?

alpine path Mar 16, 2024, 5:48 PM

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spiral jasper What infill do you use? -> Does the pattern change if you change infill?

Nope, doesnt change.

spiral jasper Mar 16, 2024, 6:01 PM

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Hmm honestly I am not sure, but going by the picture and the pattern being constant I would suspect an extruder issue, but as you've said you've tried 3 extruders with the same result. You did change the motor aswell with the extruders or did you re-use the same motor?

alpine path Mar 16, 2024, 6:35 PM

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spiral jasper Hmm honestly I am not sure, but going by the picture and the pattern being const...

They all have their own steppers. All the same steppers.

spiral jasper Mar 16, 2024, 7:18 PM

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Yeah, I honestly have no clue and I am just guessing, but my next 2 steps would be to check that the configuration for the extruder motor/driver are correct, and then maybe I would also try to switch the driver on the board with a different driver (maybe the driver is faulty?), I would also try a different slicer that also can't do any harm, but I am guessing you've already tried that

alpine path Mar 16, 2024, 7:41 PM

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spiral jasper Yeah, I honestly have no clue and I am just guessing, but my next 2 steps would ...

Yeah i tried Cura, SS and Orca. All with the same results. Maybe ill try the driver next. Thanks for the input!

pallid lava Mar 16, 2024, 10:43 PM

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Have you checked your layer time plot in the slicer? I have experienced that big differences in the time it takes to print consecutive layers can have under bulging or over bulging affects. You want the color plot to be as consistent as possible, but if you can't have that, then you want the gradient to be gradual. Just a thought and a different take to consider.

alpine path Mar 17, 2024, 12:11 AM

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pallid lava Have you checked your layer time plot in the slicer? I have experienced that big...

To be honest i didnt know thats a thing

kindred iris Mar 17, 2024, 8:28 AM

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i am messing around with bad walls too

did you read this => https://forum.vorondesign.com/threads/inconsistent-extrusion-diagnostics.51/ ?

VORON Design

Inconsistent extrusion diagnostics

Hello all.

Im working on a tool to better diagnose the cause of woodgrain patterns, or inconsistent extrusion.

These are based on the extruders movement, which we know the variables for. With some thought, we should be able to calculate when they should occur, for any given cause.
The patterns...

alpine path Mar 17, 2024, 6:03 PM

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Ill look into this today! Thanks!

alpine path Mar 18, 2024, 11:01 PM

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After doing my EM test I've noticed there is some extrusion inconsistencies. This is on my Galileo 2 extruder. I swapper back to my CW2 and saw the same thing. I tried a cold pull again to see if there was a clog, but there wasn't. I looked over all my extruder settings in my printer.cfg but nothing stood out. Can't seem to find the reason why the extrusion would be inconsistent.

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If you zoom in you can see the "wazy" extrusion lines

kindred iris Mar 19, 2024, 4:07 AM

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What do you thing about the out of center gear thing?
I orderd a one piece gear an i will Report If This Makes a difference

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alpine path Mar 19, 2024, 4:32 AM

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kindred iris What do you thing about the out of center gear thing? I orderd a one piece gear ...

I would like to say that's my issue but in the picture above is printed with Galileo 2. So that wouldn't help in my situation. But I'd still like to know if works for you so I can order some if it works out for you.

kindred iris Mar 19, 2024, 4:38 AM

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I will Report. The Part should Service Next week

alpine path Apr 26, 2024, 8:03 PM

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@kindred iris Any updates? I'm curious if the gears helped you.

kindred iris Apr 26, 2024, 8:09 PM

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ah...
the gear helped a little...

but G2 is far more improvement

#Poor Wall Quality