Ha
s anybody else have a problem with an error on the x axis. not moving. It first i though it was the stepper motor. But it does move when you first power on the printer.
Error during homing x: Communication timeout during homing
It seem the calibration work find as well
What does Klipper copy to the console in Fluidd?
Download klippy.log From your printer, zip it and upload here.
klippy.log (1.3 MB)
The only issue in this log is
Nozzle clog detected! Extruded only: 87
Stats 90967.5: gcodein=0 mcu: mcu_awake=0.030 mcu_task_avg=0.000002 mcu_task_stddev=0.000001 bytes_write=3521568 bytes_read=12303703 bytes_retransmit=0 bytes_invalid=0 send_seq=186715 receive_seq=186715 retransmit_seq=0 srtt=0.003 rttvar=0.002 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=399999987 buffer_mcu: mcu_awake=0.001 mcu_task_avg=0.000013 mcu_task_stddev=0.000008 bytes_write=616600 bytes_read=1704707 bytes_retransmit=0 bytes_invalid=0 send_seq=90427 receive_seq=90427 retransmit_seq=0 srtt=0.003 rttvar=0.002 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72004768 adj=72004592 extra_mcu: mcu_awake=0.031 mcu_task_avg=0.000017 mcu_task_stddev=0.000021 bytes_write=1373496 bytes_read=7181789 bytes_retransmit=0 bytes_invalid=0 send_seq=107645 receive_seq=107645 retransmit_seq=0 srtt=0.001 rttvar=0.001 rto=0.025 ready_bytes=46 upcoming_bytes=25 freq=72004292 adj=72004410 sd_pos=1157948 mcu_temp: temp=48.1 Host_temp: temp=61.4 heater_bed: target=65 temp=64.9 pwm=0.364 sysload=0.37 cputime=3855.374 memavail=654800 print_time=81157.786 buffer_time=4.033 print_stall=0 extruder: target=230 temp=229.6 pwm=0.529
Pause Print!
Exiting SD card print (position 1157977)
The log rolled over at midnight.
=============== Log rollover at Thu Oct 1 23:57:18 2026 ===============
Can you send the last 2 archive klippy.log files or force the “error during homing” message then grab the current log?
sorry think this was download after i mess with it a ran a benchy
but it look like i am not having a homing problem anymore
klippy (2).rar (984.3 KB)
It came back
There is something wired happening with time sync between the host and the 3 MCUs.
Was the printer powered continuously for at least 12.5 hours before “start print” caused the error?
Does rebooting the printer clear the problem until the next long idle time?
Stats 186286.5: gcodein=0 mcu: mcu_awake=0.001 mcu_task_avg=0.000002 mcu_task_stddev=0.000001 bytes_write=10405770 bytes_read=28348459 bytes_retransmit=0 bytes_invalid=0 send_seq=515735 receive_seq=515735 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=400000259 buffer_mcu: mcu_awake=0.001 mcu_task_avg=0.000010 mcu_task_stddev=0.000006 bytes_write=1522858 bytes_read=3988818 bytes_retransmit=0 bytes_invalid=0 send_seq=209097 receive_seq=209097 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72004953 adj=72004925 extra_mcu: mcu_awake=0.001 mcu_task_avg=0.000014 mcu_task_stddev=0.000009 bytes_write=3701220 bytes_read=16143817 bytes_retransmit=0 bytes_invalid=0 send_seq=255536 receive_seq=255536 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72003844 adj=72003799 mcu_temp: temp=35.8 Host_temp: temp=47.8 heater_bed: target=0 temp=37.6 pwm=0.000 sysload=0.53 cputime=7978.277 memavail=656508 print_time=176414.300 buffer_time=0.000 print_stall=0 extruder: target=0 temp=27.7 pwm=0.000
Stats 186287.5: gcodein=0 mcu: mcu_awake=0.001 mcu_task_avg=0.000002 mcu_task_stddev=0.000001 bytes_write=10405776 bytes_read=28348583 bytes_retransmit=0 bytes_invalid=0 send_seq=515736 receive_seq=515736 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=400000254 buffer_mcu: mcu_awake=0.001 mcu_task_avg=0.000010 mcu_task_stddev=0.000006 bytes_write=1522864 bytes_read=3988834 bytes_retransmit=0 bytes_invalid=0 send_seq=209098 receive_seq=209098 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72004952 adj=72004885 extra_mcu: mcu_awake=0.001 mcu_task_avg=0.000014 mcu_task_stddev=0.000009 bytes_write=3701226 bytes_read=16143910 bytes_retransmit=0 bytes_invalid=0 send_seq=255537 receive_seq=255537 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72003843 adj=72003772 mcu_temp: temp=35.7 Host_temp: temp=47.9 heater_bed: target=0 temp=37.6 pwm=0.000 sysload=0.53 cputime=7978.307 memavail=656528 print_time=176414.300 buffer_time=0.000 print_stall=0 extruder: target=0 temp=27.5 pwm=0.000
Starting SD card print (position 0)
Resetting prediction variance 231474.705: freq=400000519 diff=-4294970851 stddev=10344.068
Stats 231474.7: gcodein=0 mcu: mcu_awake=0.000 mcu_task_avg=0.000002 mcu_task_stddev=0.000001 bytes_write=10681009 bytes_read=34500239 bytes_retransmit=0 bytes_invalid=0 send_seq=561607 receive_seq=561606 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=400000519 buffer_mcu: mcu_awake=0.000 mcu_task_avg=0.000009 mcu_task_stddev=0.000002 bytes_write=1798084 bytes_read=4837354 bytes_retransmit=0 bytes_invalid=0 send_seq=254968 receive_seq=254967 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72004935 adj=72004710 extra_mcu: mcu_awake=0.001 mcu_task_avg=0.000013 mcu_task_stddev=0.000009 bytes_write=3976446 bytes_read=20045890 bytes_retransmit=0 bytes_invalid=0 send_seq=301407 receive_seq=301406 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72003879 adj=72003870 sd_pos=285818 mcu_temp: temp=34.0 Host_temp: temp=53.2 heater_bed: target=0 temp=24.0 pwm=0.000 sysload=0.82 cputime=9709.560 memavail=665460 print_time=176414.300 buffer_time=0.000 print_stall=0 extruder: target=0 temp=24.3 pwm=0.000
Running Command {SYNC}...:
Command {SYNC} finished
Resetting prediction variance 231488.347: freq=392873776 diff=-8036644074 stddev=400000.000
Stats 231488.3: gcodein=0 mcu: mcu_awake=0.000 mcu_task_avg=0.000002 mcu_task_stddev=0.000001 bytes_write=10681015 bytes_read=34501918 bytes_retransmit=0 bytes_invalid=0 send_seq=561608 receive_seq=561608 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=377339173 buffer_mcu: mcu_awake=0.000 mcu_task_avg=0.000009 mcu_task_stddev=0.000002 bytes_write=1798090 bytes_read=4837425 bytes_retransmit=0 bytes_invalid=0 send_seq=254969 receive_seq=254969 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72004939 adj=93834763 extra_mcu: mcu_awake=0.001 mcu_task_avg=0.000013 mcu_task_stddev=0.000009 bytes_write=3976452 bytes_read=20046853 bytes_retransmit=0 bytes_invalid=0 send_seq=301408 receive_seq=301408 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72003903 adj=93832730 sd_pos=506163 mcu_temp: temp=33.9 Host_temp: temp=54.1 heater_bed: target=0 temp=23.9 pwm=0.000 sysload=0.85 cputime=9723.055 memavail=664080 print_time=176414.300 buffer_time=0.000 print_stall=0 extruder: target=0 temp=24.2 pwm=0.000
Stats 231497.2: gcodein=0 mcu: mcu_awake=0.000 mcu_task_avg=0.000002 mcu_task_stddev=0.000001 bytes_write=10681503 bytes_read=34503001 bytes_retransmit=0 bytes_invalid=0 send_seq=561616 receive_seq=561613 retransmit_seq=0 srtt=0.002 rttvar=0.002 rto=0.025 ready_bytes=53 upcoming_bytes=1 freq=377339173 buffer_mcu: mcu_awake=0.000 mcu_task_avg=0.000009 mcu_task_stddev=0.000002 bytes_write=1798096 bytes_read=4837451 bytes_retransmit=0 bytes_invalid=0 send_seq=254970 receive_seq=254969 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=72004939 adj=94491773 extra_mcu: mcu_awake=0.001 mcu_task_avg=0.000013 mcu_task_stddev=0.000009 bytes_write=3976452 bytes_read=20047490 bytes_retransmit=0 bytes_invalid=0 send_seq=301408 receive_seq=301408 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=33 upcoming_bytes=1 freq=72003903 adj=94491883 sd_pos=692935 mcu_temp: temp=34.0 Host_temp: temp=54.1 heater_bed: target=0 temp=23.9 pwm=0.000 sysload=0.95 cputime=9731.812 memavail=663444 print_time=221680.112 buffer_time=0.000 print_stall=0 extruder: target=0 temp=24.3 pwm=0.000
Resetting prediction variance 231497.173: freq=377339173 diff=-6702896676 stddev=400000.000
Error during homing x: Communication timeout during homing
Error during homing x: Communication timeout during homing
Error during homing x: Communication timeout during homing
Cancel Print Success!
“Resetting prediction variance” is klipper trying to sync up all the clocks. For some reason they don’t sync so klipper won’t accept the timestamped output from the homing request.
yes it does. After rebooting, I have no issue homing until I start the print.at first it was on for 2 week straight. then i power it off for a day and it happen again