Duet wifi print stalls

morf

Hi Folks,
It's been some time since I first equipped my detla printer with duet 3d WiFi board.
I have run a number of successful prints however now I'm facing issues that I cannot resolve.

Problem:
With longer or prints my printer suddenly stalls.
Previously I run prints overnight fine but now after 1h or 2h it stalls.
By stall I mean printhead stops moving (randomly) but heaters keep heating (OMG!). Web GUI shows printer state as "paused" but nobody paused the print...
When I hit Resume button only one axis moves. Sending G28 also fails as only one motor moves.

Restarting via "emergency stop" or power cycle fix the problem.

Today I run 3 times into this issue and couldn't finish prints.

I have a M122 output from two last attempts:

5:48:31M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.01(RTOS) running on Duet WiFi 1.02 or later
Board ID: 08DGM-9T6BU-FG3S8-6J9DG-3S46S-TVJ3F
Used output buffers: 1 of 20 (14 max)
=== RTOS ===
Static ram: 28476
Dynamic ram: 96392 of which 16 recycled
Exception stack ram used: 428
Never used ram: 5760
Tasks: NETWORK(ready,272) HEAT(blocked,1248) MAIN(running,3548)
Owned mutexes:
=== Platform ===
Last reset 03:00:42 ago, cause: power up
Last software reset at 2019-10-22 10:50, reason: User, spinning module GCodes, available RAM 5840 bytes (slot 0)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
Error status: 0
Free file entries: 9
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 2.7ms, max retries 0
MCU temperature: min 35.1, current 45.0, max 45.4
Supply voltage: min 11.4, current 12.6, max 12.7, under voltage events: 0, over voltage events: 0
Driver 0: standstill, SG min/max 0/474
Driver 1: standstill, SG min/max 0/467
Driver 2: standstill, SG min/max 0/468
Driver 3: standstill, SG min/max 0/1023
Driver 4: standstill, SG min/max not available
Date/time: 2019-10-26 15:48:27
Slowest loop: 251.58ms; fastest: 0.07ms
=== Move ===
Hiccups: 0, StepErrors: 0, LaErrors: 0, FreeDm: 240, MinFreeDm: 120, MaxWait: 3653980ms, Underruns: 18, 0
Scheduled moves: 138950, completed moves: 138949
Bed compensation in use: none
Bed probe heights: 0.000 0.000 0.000 0.000 0.000
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
Heater 0 is on, I-accum = 0.2
Heater 1 is on, I-accum = 0.3
=== GCodes ===
Segments left: 0
Stack records: 2 allocated, 0 in use
Movement lock held by null
http is idle in state(s) 0
telnet is idle in state(s) 0
file is doing "G1 X-53.272 Y19.900 E7.6444" in state(s) 0
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 182.45ms; fastest: 0.08ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 1 of 8
- WiFi -
Network state is running
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.21
WiFi MAC address 80:7d:3a:15:1e:1c
WiFi Vcc 3.40, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 15880
WiFi IP address 192.168.5.110
WiFi signal strength -46dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0
=== Expansion ===

And second

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.01(RTOS) running on Duet WiFi 1.02 or later
Board ID: 08DGM-9T6BU-FG3S8-6J9DG-3S46S-TVJ3F
Used output buffers: 3 of 20 (14 max)
=== RTOS ===
Static ram: 28476
Dynamic ram: 96392 of which 16 recycled
Exception stack ram used: 436
Never used ram: 5752
Tasks: NETWORK(ready,328) HEAT(blocked,1248) MAIN(running,3540)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 02:07:55 ago, cause: power up
Last software reset at 2019-10-26 15:49, reason: User, spinning module GCodes, available RAM 5760 bytes (slot 1)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
Error status: 0
Free file entries: 9
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 50.4ms, max retries 0
MCU temperature: min 26.4, current 43.4, max 45.7
Supply voltage: min 11.4, current 12.6, max 12.7, under voltage events: 0, over voltage events: 0
Driver 0: standstill, SG min/max 0/468
Driver 1: standstill, SG min/max 0/459
Driver 2: standstill, SG min/max 0/458
Driver 3: standstill, SG min/max 0/1023
Driver 4: standstill, SG min/max not available
Date/time: 2019-10-26 19:05:23
Slowest loop: 104.33ms; fastest: 0.07ms
=== Move ===
Hiccups: 0, StepErrors: 0, LaErrors: 0, FreeDm: 240, MinFreeDm: 120, MaxWait: 215158ms, Underruns: 20, 0
Scheduled moves: 145400, completed moves: 145399
Bed compensation in use: none
Bed probe heights: 0.000 0.000 0.000 0.000 0.000
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
=== GCodes ===
Segments left: 0
Stack records: 2 allocated, 0 in use
Movement lock held by null
http is idle in state(s) 0
telnet is idle in state(s) 0
file is doing "G1 X47.940 Y-70.150 E3.9089" in state(s) 0
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 52.86ms; fastest: 0.01ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 1 of 8
- WiFi -
Network state is running
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.21
WiFi MAC address 80:7d:3a:15:1e:1c
WiFi Vcc 3.40, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 15960
WiFi IP address 192.168.5.110
WiFi signal strength -55dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0
=== Expansion ===

My system

Firmware Name:   RepRapFirmware for Duet 2 WiFi/Ethernet
Firmware Electronics:   Duet WiFi 1.02 or later
Firmware Version:   2.01(RTOS) (2018-07-26b2)
WiFi Server Version:   1.21
Web Interface Version:   1.22.3

I thought it's an SD card issue and replaced it but again print failed.

I don't know how to find the root cause as currently I'm really nervous of leaving printer alone as when stall occurs heaters keep heating and print could burn after a while...

No additional errors occured.

Thank you for help

Veti

please update to the latest duet firmware and try again (2.04RC version as 2.03 has a bug with deltas)

Veti

also. did you follow dc42 suggestion to decrease your microstepping to the recommended x16 with interpolation?

morf

@Veti yes

Ok I'll update to recommended firmware version and let You know.

The only thing that bothers me is that printer generally was working fine until yesterday so I wouldn't blame firmware in the first place as it looks very similar to SD card issues (but I replaced it and then same problem was encountered).

How about power supply? Undervoltage event should be visible in m122 command shouldn't it?

Shall I enable some additional debug verbosity level? (And how?)

Veti

@morf said in Duet wifi print stalls:

Shall I enable some additional debug verbosity level? (And how?)

https://duet3d.dozuki.com/Wiki/Logging

morf

Ok i upgraded firmware to 2.04RC4 but it didn't solve my problems directly however with new firmware onboard when the "stall" occured in the Console window I got message saying that print was paused due to low voltage.
I replaced my power supply and restart the print.
So far it seems that this problem is gone and it was connected to faulty PS.