Trouble since switching to Klipper

[stolowma]

Basic Information:

Ender 3 Pro, BMG clone DD extruder, Red Lizard hotend, Orca slicer
SKR mini E3 V3
klippy (1).log (2.5 MB)

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Describe your issue:

…First time using Klipper. I’m trying to get my E3 set up and have run into some issues. I just printed a pressure advance calibration setup as recommended at https://www.obico.io/blog/klipper-pressure-advance/
It only seems to happen on larger prints 50mm or so.

The sides facing me turned out as expected:

The two other sides:

Odd thing is the inner wall printed perfectly. I’ve had similar issues since switching with other prints at only certain areas of the model but not to this extent. I figured this would work itself out as I went through calibration but it hasn’t. This never happened when running Marlin. What am I missing?
TIA

[theophile]

It’s hard to tell but it looks like there might be first layer problems, either poor adhesion or printing too low. This could be causing the back part of the first layer to lift, which results in the layers above it being poorly supported and possibly producing the mess you’re seeing. You may also be printing too fast, too hot, and/or with too high acceleration values.

[Sineos]

On a casual look:

• You seem to be using arcs (which I would not recommend) but you have arcs disabled in Klipper
• Your run_current for X and Y seem pretty low

[stolowma]

Print was stuck really well with a brim and didn’t notice any lifting but I will look into it. Acceleration was my first thought but why only those two sides? It was printed at 30mm/sec, max_velocity: 300 max_accel: 3000 which was the values in the config file for the printer. I’ll try running a accel test. Thanks.

[stolowma]

Yes, I did notice unknown command G23 messages in console. I didn’t realize it was enabled. I’m kinda new to Orca, I’ll have to dig around and find where it can be disabled. Where is it disabled in Klipper?
I didn’t think to look at the stepper current. I left it at the default in the config for the printer but I’ll check it out. Thanks for the advice.

[theophile]

I like @Sineos’s theory better.

[Sineos]

@stolowma

I’m kinda new to Orca

Quality → Precision → Arc Fitting

and

the Klipper docs: Configuration reference - Klipper documentation

If you care about my opinion on arcs: [FR] Automatic Extrusion - #10 by Sineos

[stolowma]

I checked and the “stock” current settings are 580ma which is what I have. They’re rated at 1000ma so I’ll try bumping that up a bit. I’ll also take your advice and leave arcs disabled and see how it goes. I figured switching over to Klipper was going to be an adventure. Thanks again.