Klipper stops print indifferent of slicer used

Basic Information:

Printer Model: ender 3
MCU / Printerboard: klipper / BTT Mini E3 V3.0
Host / SBC Octoprint
klippy.log (octoprint.log)

2024-08-20 20:10:17,513 - octoprint.util.comm - WARNING - Received an error from the printer’s firmware: Move exceeds maximum extrusion (3.871mm^2 vs 0.640mm^2)
| Last lines in terminal:
| Recv: ok
| Send: N70579 G1 X145.57 Y114.96 F30000121
| Recv: ok
| Send: N70580 G1 F4307
68
| Recv: ok
| Send: N70581 G1 X145.652 Y115.042 E.0034690
| Recv: ok
| Send: N70582 G3 X146.758 Y116.505 I-13.414 J11.287 E.05449
123
| Recv: // Unknown command:“G3”
| Recv: ok
| Send: N70583 G3 X146.603 Y118.74 I-1.841 J.995 E.07018125
| Recv: // Unknown command:“G3”
| Recv: ok
| Send: N70584 G3 X145.569 Y120.042 I-8.829 J-5.952 E.0494
107
| Recv: // Unknown command:“G3”
| Recv: ok
| Send: N70585 G1 X145.569 Y115 E.14969*79
| Recv: // Move exceeds maximum extrusion (3.871mm^2 vs 0.640mm^2)
| Recv: // See the ‘max_extrude_cross_section’ config option for details
| Recv: !! Move exceeds maximum extrusion (3.871mm^2 vs 0.640mm^2)
2024-08-20 20:10:17,521 - octoprint.util.comm - INFO - Changing monitoring state from “Printing” to “Cancelling”

**

Describe your issue:

Hi there,
I put my older Ender 3 printers back to life. The latest got a professional firmware, the eldest got a new board with klipper. I am still setting up the elder and tried to print a benchie. But indifferent of the slicer used (orcaslicer (klipper/marlin2.0), cura 5.10) the printer stops always at the same point of the benchie. Error message is either or just a M112 (even tried two different mini e3 v3.0 boards)…
Solution would be nice - understanding the problem a vast step in the right direction…

Looking at you benchy your extrusion is totally off and this probaly matches the error Move exceeds maximum extrusion (3.871mm^2 vs 0.640mm^2).
For an explanation, see: Move exceeds maximum extrusion (AA mm^2 vs BB mm^2)

For any further discussions, follow the template and attach the required klippy.log

Hi Sineos,
klippy.zip (1.1 MB)

thanks for your reply.
Hiere comes the klippy.log (got a bit bigger, had to compress).
I printed the benchy on my other ender without any problems (octoslicer but with petg instead of pla). I am a bit confused how this error could result, hence the start parameters are almost identical…
Shortly after starting the printing process, I noticed error messages that could explain the error shown on the right side of the boot. There were G2 and G3 as well as M73 errors. (If I remember correctly, G2 and G3 are curve functions…) As I said, I can’t locate the error (hardware, software, firmware), which complicates solving that problem.
Thanks for your help.

This is hard to judge from remote as it seems that more components are involved.
What is evident:

  1. You are slicing with ARCs enabled in the slicer. IMO this is something that has no added value in Klipper. Also see [FR] Automatic Extrusion - #10 by Sineos
  2. You do not have ARC support enabled in Klipper. See Configuration reference - Klipper documentation

So as a first step, EITHER enable ARCs in Klipper or disable it in the slicer and try again. If problems persist then come back with a new klippy.log.

Hi Sineos,

thank you for your exactly to the point diagnosis. After fixing / enabling [Arc support] and disabling the relative extrusion, the benchy - for the first time on this machine - went till the end.
The over all quality of the print has drastically improved, allthough benchy (top) shows signs of under-extrusion (?).

Thank you for your extremly helpful insights.
Among other things, I deduce from this that the printer.cfg is nothing other than a klipper.cfg. Functionality must be stored there in order to be used in the printing process.
The next challenge will be to integrate acceleration sensors (ADXL345) and measure the resonance frequencies…
But that’s for another day…

Looks like you are too fast for you cooling/filament. Might print a bit hotter or just slower.

Regarding to ADXL read here:
https://www.klipper3d.org/Measuring_Resonances.html
That is a detailed guide with valuable hints.

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