Random pausing (between gcode commands??)

[brasse]

I just switched to a Duet Wifi board on my CR-5 pro.

When printing it randomly pauses, see video:
https://youtu.be/7z-b43RiSE8

What could cause this?

Edit; more info:
Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.1.1 (2020-05-19b2)
Same problem slicing with cura or simplify 3d

[Phaedrux]

https://forum.duet3d.com/topic/5909/guide-for-posting-requests-for-help

Need a lot more info please.

[Phaedrux]

Can you post your config.g?
Can you post your homeall.g?
Can you post the entire gcode file or at least the first 50 or so lines of it?
Can you send M122 and post the results?
Can you send M98 P"config.g" and post the results?

[brasse]

This post is deleted!

[PCR]

post the contents @Phaedrux asked for

[brasse]

config.g

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.0 on Thu Dec 31 2020 14:03:37 GMT+0100 (centraleuropeisk normaltid)
 
; General preferences
G90                                            ; send absolute coordinates...
M83                                            ; ...but relative extruder moves
M550 P"CR5Pro"                                 ; set printer name
 
; Network
M552 S1                                        ; enable network
M586 P0 S1                                     ; enable HTTP
M586 P1 S0                                     ; disable FTP
M586 P2 S0                                     ; disable Telnet
 
; Drives
M569 P0 S1                                     ; physical drive 0 goes forwards
M569 P1 S1                                     ; physical drive 1 goes forwards
M569 P2 S1                                     ; physical drive 2 goes forwards
M569 P3 S1                                     ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3                               ; set drive mapping
M350 X16 Y16 Z16 E16 I1                        ; configure microstepping with interpolation
;M92 X80.00 Y80.00 Z400.00 E420.00              ; set steps per mm
M92 X80.00 Y80.00 Z400.00 E100.00              ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00            ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00        ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00            ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800 I30                   ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                        ; Set idle timeout
 
; Axis Limits
M208 X0 Y0 Z0 S1                               ; set axis minima
M208 X300 Y225 Z380 S0                         ; set axis maxima
 
; Endstops
M574 X1 S1 P"!xstop"                            ; configure active-high endstop for low end on X via pin xstop, inverted
M574 Y1 S1 P"!ystop"                            ; configure active-high endstop for low end on Y via pin ystop, inverted
M574 Z1 S1 P"!zstop"                            ; configure active-high endstop for low end on Z via pin zstop, inverted
 
; Filament sensor
M591 D0 P1 C"!e0_stop" S1  ; filament monitor connected to E0_stop
 
 
; Z-Probe
M558 P0 H5 F120 T6000                          ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20                       ; define mesh grid
 
; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0                          ; create bed heater output on bedheat and map it to sensor 0
;M307 H0 B1 S1.00                               ; enable bang-bang mode for the bed heater and set PWM limit
M307 H0 A151.4 C656.2 D2.3 V24 B0
M140 H0                                        ; map heated bed to heater 0
M143 H0 S110                                   ; set temperature limit for heater 0 to 110C
M308 S1 P"e0temp" Y"thermistor" T100000 B4138  ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
;M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit
M307 H1 A368.4 C121.5 D4.9 V24 B0
M143 H1 S250                                   ; set temperature limit for heater 1 to 250C
 
; Fans
M950 F0 C"fan0" Q500                           ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1                                 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500                           ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45                              ; set fan 1 value. Thermostatic control is turned on
M950 F2 C"fan2" Q500                           ; create fan 1 on pin fan1 and set its frequency
M106 P2 S1 H-1                              ; set fan 2 value. Thermostatic control is turned off, PCB fan
 
 
; Tools
M563 P0 D0 H1 F0                               ; define tool 0
G10 P0 X0 Y0 Z0                                ; set tool 0 axis offsets
G10 P0 R0 S0                                   ; set initial tool 0 active and standby temperatures to 0C
 
; Custom settings are not defined
 
; Miscellaneous
M575 P1 S1 B57600                              ; enable support for PanelDue

####################################################

homeall.g

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.2.0 on Thu Dec 31 2020 14:03:37 GMT+0100 (centraleuropeisk normaltid)
G91                     ; relative positioning
G1 H2 Z5 F6000          ; lift Z relative to current position
G1 H1 X-305 Y-230 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000       ; go back a few mm
G1 H1 X-305 Y-230 F360  ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-385 F360        ; move Z down stopping at the endstop
G90                     ; absolute positioning
G92 Z0                  ; set Z position to axis minimum (you may want to adjust this)

####################################################
First lines of Gcode:

G90
M82
M106 S0
M140 S60
M190 S60
M104 S200 T0
M109 S200 T0
M107 ;turn off fan
G28 ; home X Y and Z axis end-stops
G0 X10 Y10 F9000 ; Go to front 10mm to the right
G0 Z0.15 ; Drop to bed
G92 E0 ; zero the extruded length
G1 X50 E25 F500 ; Extrude 25mm of filament in a 4cm line
G92 E0 ; zero the extruded length
G1 E-0.8 F500 ; Retract a little
G1 X80 F4000 ; Quickly wipe away from the filament line
G1 Z0.3 ; Raise and begin printing.
; process Process1
; layer 1, Z = 0.240
T0
G92 E0.0000
G1 E-4.8000 F3600
; feature skirt
; tool H0.240 W0.480
G1 Z0.240 F1002
G1 X124.105 Y122.048 F7200
G1 E-0.1000 F3600
G92 E0.0000
G1 X123.845 Y121.944 E0.0133 F1200
G1 X123.395 Y121.716 E0.0372
G1 X123.191 Y121.593 E0.0485
G1 X122.766 Y121.291 E0.0732
G1 X122.547 Y121.105 E0.0869
G1 X122.130 Y120.678 E0.1151
G1 X121.957 Y120.468 E0.1281
G1 X121.663 Y120.042 E0.1526
G1 X121.541 Y119.834 E0.1640
G1 X121.321 Y119.383 E0.1878
G1 X121.223 Y119.127 E0.2008
G1 X121.038 Y118.489 E0.2323
G1 X120.982 Y118.191 E0.2467
G1 X120.925 Y117.579 E0.2758
G1 X120.918 Y117.431 E0.2828
G1 X120.922 Y107.400 E0.7585
G1 X120.940 Y107.160 E0.7699
G1 X121.045 Y106.466 E0.8032
G1 X121.144 Y106.105 E0.8209
G1 X121.474 Y105.289 E0.8627
G1 X121.672 Y104.937 E0.8818
G1 X122.135 Y104.310 E0.9188
G1 X122.417 Y104.015 E0.9381
G1 X123.091 Y103.470 E0.9792
G1 X123.429 Y103.261 E0.9981
G1 X124.111 Y102.946 E1.0337
G1 X124.478 Y102.828 E1.0520
G1 X125.262 Y102.677 E1.0898
G1 X125.468 Y102.651 E1.0997
G1 X149.007 Y101.217 E2.2178
G1 X149.084 Y101.214 E2.2215
G1 X150.614 Y101.195 E2.2941
G1 X150.776 Y101.201 E2.3017
G1 X152.503 Y101.354 E2.3839
G1 X152.638 Y101.371 E2.3904
G1 X153.674 Y101.553 E2.4403
G1 X153.777 Y101.574 E2.4453
G1 X154.871 Y101.840 E2.4986
G1 X154.971 Y101.868 E2.5036
G1 X155.998 Y102.190 E2.5546
G1 X156.094 Y102.224 E2.5594
G1 X157.019 Y102.579 E2.6064
G1 X157.119 Y102.622 E2.6116
G1 X158.223 Y103.134 E2.6693
G1 X158.316 Y103.181 E2.6742
G1 X159.143 Y103.633 E2.7189
G1 X159.232 Y103.685 E2.7238
G1 X160.229 Y104.316 E2.7797
G1 X160.317 Y104.375 E2.7847
G1 X161.154 Y104.986 E2.8339
G1 X161.243 Y105.056 E2.8392
G1 X162.195 Y105.858 E2.8983
G1 X162.274 Y105.930 E2.9034
G1 X162.972 Y106.603 E2.9493
G1 X163.047 Y106.681 E2.9544
G1 X163.898 Y107.622 E3.0146
G1 X163.964 Y107.700 E3.0195
G1 X164.487 Y108.358 E3.0593
G1 X164.532 Y108.417 E3.0629
G1 X164.956 Y109.005 E3.0972
G1 X165.012 Y109.087 E3.1019
G1 X165.721 Y110.211 E3.1649
G1 X165.811 Y110.374 E3.1738
G1 X166.011 Y110.794 E3.1958
G1 X166.125 Y111.116 E3.2120
G1 X166.307 Y111.885 E3.2495
G1 X166.347 Y112.353 E3.2717
G1 X166.300 Y113.132 E3.3088
G1 X166.237 Y113.490 E3.3260
G1 X166.073 Y114.044 E3.3534
G1 X165.941 Y114.361 E3.3697
G1 X165.548 Y115.078 E3.4084
G1 X165.484 Y115.184 E3.4143
G1 X164.914 Y116.056 E3.4637
G1 X164.847 Y116.151 E3.4692
G1 X164.051 Y117.194 E3.5314
G1 X163.985 Y117.276 E3.5364
G1 X163.405 Y117.940 E3.5782
G1 X163.340 Y118.010 E3.5828
G1 X162.559 Y118.803 E3.6356
G1 X162.486 Y118.872 E3.6403
G1 X161.768 Y119.516 E3.6860
G1 X161.691 Y119.581 E3.6908
G1 X160.847 Y120.246 E3.7417
G1 X160.767 Y120.305 E3.7465
G1 X159.957 Y120.866 E3.7932
G1 X159.876 Y120.918 E3.7977
G1 X159.044 Y121.423 E3.8439
G1 X158.965 Y121.469 E3.8482
G1 X158.097 Y121.929 E3.8948
G1 X158.014 Y121.970 E3.8992
G1 X157.192 Y122.347 E3.9421
G1 X157.104 Y122.385 E3.9466
G1 X156.105 Y122.773 E3.9974
G1 X156.014 Y122.805 E4.0020
G1 X155.143 Y123.084 E4.0454

#####################################################

M122

=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.1.1 running on Duet WiFi 1.02 or later
Board ID: 0JD0M-9K662-MG5T4-6J9FL-3S06T-K8N6Z
Used output buffers: 3 of 24 (24 max)
=== RTOS ===
Static ram: 27980
Dynamic ram: 93776 of which 44 recycled
Exception stack ram used: 544
Never used ram: 8728
Tasks: NETWORK(ready,268) HEAT(blocked,1216) MAIN(running,1732) IDLE(ready,80)
Owned mutexes:
=== Platform ===
Last reset 01:25:11 ago, cause: software
Last software reset at 2021-01-07 19:27, reason: User, spinning module GCodes, available RAM 8776 bytes (slot 1)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task MAIN
Error status: 4
MCU temperature: min 49.3, current 49.7, max 50.2
Supply voltage: min 23.7, current 24.2, max 24.3, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max not available
Driver 1: standstill, SG min/max not available
Driver 2: standstill, SG min/max not available
Driver 3: ok, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 2021-01-07 20:53:05
Cache data hit count 4294967295
Slowest loop: 51.70ms; fastest: 0.14ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Storage ===
Free file entries: 9
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest read time 2.8ms, write time 18.2ms, max retries 0
=== Move ===
Hiccups: 0(0), FreeDm: 168, MinFreeDm: 157, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves: 9333, completed moves: 9330, StepErrors: 0, LaErrors: 0, Underruns: 0, 0  CDDA state: 3
=== AuxDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0  CDDA state: -1
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
Heater 0 is on, I-accum = 0.2
Heater 1 is on, I-accum = 0.5
=== GCodes ===
Segments left: 0
Movement lock held by HTTP
HTTP is idle in state(s) 21
Telnet is idle in state(s) 0
File is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 202.00ms; fastest: 0.09ms
Responder states: HTTP(2) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8
- WiFi -
Network state is active
WiFi module is connected to access point 
Failed messages: pending 0, notready 0, noresp 1
WiFi firmware version 1.23
WiFi MAC address 48:3f:da:4f:c7:b5
WiFi Vcc 3.38, reset reason Unknown
WiFi flash size 4194304, free heap 24120
WiFi IP address 192.168.111.68
WiFi signal strength -66dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0
=== Filament sensors ===
Extruder 0 sensor: ok

#######################
M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled

[Phaedrux]

Thanks. That provides a much clearer picture of what's going on. Unfortunately I don't see any obvious issues.

Was that M122 captured after the pausing was happening in the print?

Was that the first layer? Usually pausing like that could be due to a low Z jerk value and using mesh compensation, but your Z jerk is high enough and you aren't even using mesh compensation as far as I can tell.

You also aren't using high microstepping which can sometimes be the cause.

I think it's worth trying to update your firmware to 3.2 though. Upload this intact zip file to the system tab in DWC.

https://github.com/Duet3D/RepRapFirmware/releases/download/3.2/Duet2and3Firmware-3.2.zip

Only other thing I can think to test would be to disable the filament sensor and disconnect it and see if there is a difference.

[brasse]

The M122 was taken during the pause, before "Stop"

No mesh compensation.

I will try to disconnect+disable the filament sensor, if i dont have any luck there i will try 3.2 firmware.
Will report back. Thanks for the help so far!

[brasse]

The filament sensor was the problem.
Disconnected and disabled that and now it works fine.
Thanks.

How can i correct it though?

[Phaedrux]

@brasse said in Random pausing (between gcode commands??):

; Filament sensor M591 D0 P1 C"!e0_stop" S1 ; filament monitor connected to E0_stop

What kind of filament sensor is it? Were the wires running near the stepper wiring?

I still think updating to 3.2 is worth a try.

[brasse]

@Phaedrux Upgrade to 3.2 solved it! Thanks