MCU Fail Flsun T1 PRO

General Discussion
1

Basic Information:

Printer Model: FLSUN T1 PRO
MCU / Printerboard: No idea
Host / SBC Debian GNU/Linux 10
klippy.log klippy.log (224.7 KB)

Fill out above information and in all cases attach your klippy.log file (use zip to compress it, if too big). Pasting your printer.cfg is not needed
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Describe your issue:

MCU Fail, klipper does not work, i cannot connect to the ssh of the printer to try some potential ways to fix it (Connection refused), klipper does not detect the mcu, printer is completely not functional, printer used to work really well, but on my last print it stopped halfway and gave the error, tried to reflash the bin file but did not help, if i try to do anything within klipper’s console it restarts the printer, cannot use any commands, any ideas?
…

2

klippy (2).log (56.4 KB)
Newer file after reseting the printer

3

Hello @Matthew29645 !

From what I see, this is no genuine Klipper running.

...
Git version: '1.0.0.11'
...
[2024-11-29 00:12:32,264][INFO]:SaveVariables allVariables: {'absolute_coordinates': True, 'absolute_extrude': True, 'bed_temp': 60.0, 'e_pos': 2.621420000003127, 'fan_speed': 0.5929411764705882, 'filament_used': 6019.8257300000405, 'file_position': 6671897, 'gcode_offsets': {'x': None, 'y': None, 'z': -0.1}, 'level2_state': False, 'level_state': False, 'nozzle_temp': 230.0, 'plr_flag': False, 'print_duration': 1962.1773508940005, 'resonances_state': False, 'sd_filename': '/home/pi/printer_data/gcodes/Test Prusaslicer.gcode', 'was_interrupted': True, 'x_pos': 14.052, 'y_pos': -9.645, 'z_pos': 42.0}
[2024-11-29 00:12:32,309][INFO]:power_loss_recover load_config
[2024-11-29 00:12:32,313][INFO]:SaveTempVariables allVariables: {}
[...
4

Custom Flsun Version Probably, also the reason SSH fails, any ideas?

5

For we - maybe nobody - don’t know what they did to Klipper, it’s not possible to make any suggestion.

1 Like
6

thanks, i will be on call with flsun soon, they made me do some testing and it seems like the upper board has failed

7

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