Every print attempt results in "SD busy", and print cancels itself

General Discussion
1

Basic Information:

Printer Model: Voron 2.4
MCU / Printerboard: BTT Octopus
klippy.log: klippy.log (4.0 MB)

I searched the forum and found a few instances of SD busy errors that people had reported but one wasn’t solved and another appeared to be a bad/slow SD card or something with the Linux block device. I look through my klippy.log file and I don’t see any other errors or problems. I don’t think I’ve changed any config files since my printer was printing fine two days ago so I’m at a loss as to how to resolve this.

I home, heat soak, QGL, then select the tool with the ERCF to print with and as soon as I tell the printer to print a file it cleans the nozzle and goes to the first extrusion and boom: the print stops immediately. I now can’t print anything for some reason.

Any help is appreciated!

2

I just figured this out myself. I had re-run the input shaping and it suggested EI for my Y-axis so I changed the shaper_type_y to ei. Apparently, that doesn’t work and causes the SD busy error.

This is what it was:

[input_shaper]
shaper_type_x = mzv
shaper_freq_x = 50.0
shaper_type_y = ei
shaper_freq_y = 46.0

I changed it to this and now it’s working:

[input_shaper]
shaper_type_x = mzv
shaper_freq_x = 50.0
shaper_type_y = mzv
shaper_freq_y = 46.0
1 Like
3

Quite strange that this causes the error as the shaper calculation has nothing to do with the SD card.
Might just cause more load on the SBC and should therefore trigger a different error message.

1 Like
4

As stated by @LifeOfBrian: These effects are not related.
Most likely the unwanted behavior stems from a heavily modified Klipper version:

Starting Klippy...
Args: ['/home/spikeygg/klipper/klippy/klippy.py', '/home/spikeygg/printer_data/config/printer.cfg', '-I', '/home/spikeygg/printer_data/comms/klippy.serial', '-l', '/home/spikeygg/printer_data/logs/klippy.log', '-a', '/home/spikeygg/printer_data/comms/klippy.sock']
Git version: 'v0.12.0-100-g600e89ae-dirty'
Untracked files: klippy/extras/gcode_shell_command.py, klippy/extras/led_effect.py, klippy/extras/mmu.py, klippy/extras/mmu_config_setup.py, klippy/extras/mmu_encoder.py, klippy/extras/mmu_led_effect.py, klippy/extras/mmu_leds.py, klippy/extras/mmu_sensors.py, klippy/extras/mmu_servo.py, klippy/extras/mmu_toolhead.py
Branch: master
Remote: origin
Tracked URL: https://github.com/Klipper3d/klipper
CPU: 4 core ?

You will need to find support from the origin of these modifications.

5

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