1LC - extruder randomly stopping/reversing - ≤3.5.0-rc1

[Exerqtor]

I just adjusted my belt tention and retuned input shaping after moving to 3.5.0-rc2, to see if applying new shaper settings would remedy anything.

Started a print, and now it stops extruding earlier than ever, now it only does a tiny bit of my purge line before it stops.

So i thought fuck it and removed the extrusion reset commands from my layer change g-code, sliced the model again and did another try. The exact same behaviour.

Here is another set of M122 reports from while the problem is happening:

M122
=== Diagnostics ===
RepRapFirmware for Duet 3 Mini 5+ version 3.5.0-rc.2 (2023-12-15 13:33:26) running on Duet 3 Mini5plus WiFi (standalone mode)
Board ID: XNHXF-HR6KL-K65J0-409N2-K9W1Z-RV2MZ
Used output buffers: 13 of 40 (40 max)
=== RTOS ===
Static ram: 102812
Dynamic ram: 128544 of which 0 recycled
Never used RAM 5420, free system stack 120 words
Tasks: NETWORK(1,ready,83.7%,181) HEAT(3,nWait,1.0%,328) Move(4,nWait,0.3%,243) CanReceiv(6,nWait,1.7%,776) CanSender(5,nWait,0.0%,328) CanClock(7,delaying,0.3%,350) TMC(4,delaying,24.0%,74) MAIN(1,running,106.6%,584) IDLE(0,ready,179.1%,29) AIN(4,delaying,27.9%,264), total 424.7%
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 17:00:25 ago, cause: software
Last software reset at 2023-12-15 17:21, reason: User, Gcodes spinning, available RAM 12348, slot 2
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00000000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x04
Aux0 errors 0,0,0
MCU revision 3, ADC conversions started 61224767, completed 61224767, timed out 0, errs 0
MCU temperature: min 34.8, current 46.4, max 46.4
Supply voltage: min 23.4, current 23.9, max 24.6, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 198/28, heap memory allocated/used/recyclable 2048/612/192, gc cycles 119204
Events: 0 queued, 0 completed
Driver 0: ok, SG min 0, read errors 0, write errors 0, ifcnt 247, reads 26512, writes 98, timeouts 1, DMA errors 0, CC errors 0, failedOp 0x71
Driver 1: ok, SG min 0, read errors 0, write errors 0, ifcnt 247, reads 26513, writes 98, timeouts 0, DMA errors 0, CC errors 0
Driver 2: ok, SG min 0, read errors 0, write errors 0, ifcnt 152, reads 26571, writes 37, timeouts 2, DMA errors 0, CC errors 0, failedOp 0x41
Driver 3: ok, SG min 0, read errors 0, write errors 0, ifcnt 154, reads 26572, writes 38, timeouts 1, DMA errors 0, CC errors 0, failedOp 0x6c
Driver 4: standstill, SG min 0, read errors 0, write errors 0, ifcnt 152, reads 26572, writes 37, timeouts 2, DMA errors 0, CC errors 0, failedOp 0x6f
Driver 5: not present
Driver 6: not present
Date/time: 2023-12-16 10:21:36
Cache data hit count 4294967295
Slowest loop: 408.12ms; fastest: 0.09ms
=== Storage ===
Free file entries: 16
SD card 0 detected, interface speed: 22.5MBytes/sec
SD card longest read time 8.7ms, write time 8.1ms, max retries 0
=== Move ===
DMs created 83, segments created 41, maxWait 53449812ms, bed compensation in use: mesh, height map offset 0.000, max steps late 1, ebfmin 0.00, ebfmax 0.00
next step interrupt due in 55 ticks, enabled
Moves shaped first try 196, on retry 110, too short 86, wrong shape 1517, maybepossible 32
=== DDARing 0 ===
Scheduled moves 432, completed 422, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 49], CDDA state 3
=== DDARing 1 ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters 0 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0
Heater 0 is on, I-accum = 0.4
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Movement locks held by null, null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is idle in state(s) 3
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
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon is idle in state(s) 0 0, running macro
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
File2 is idle in state(s) 0
Queue2 is idle in state(s) 0
Q0 segments left 1, axes/extruders owned 0x0000807
Code queue 0 is empty
Q1 segments left 0, axes/extruders owned 0x0000000
Code queue 1 is empty
=== Filament sensors ===
check 0 clear 0
Extruder 0 sensor: no filament
=== CAN ===
Messages queued 533567, received 1211128, lost 0, errs 0, boc 0
Longest wait 6ms for reply type 6024, peak Tx sync delay 277, free buffers 26 (min 24), ts 295151/295151/0
Tx timeouts 0,0,0,0,0,0
=== Network ===
Slowest loop: 211.17ms; fastest: 0.00ms
Responder states: MQTT(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
HTTP sessions: 1 of 8
=== WiFi ===
Interface state: active
Module is connected to access point 
Failed messages: pending 0, notrdy 0, noresp 0
Firmware version 2.1beta6
MAC address c4:5b:be:ce:91:93
Module reset reason: Power up, Vcc 3.37, flash size 2097152, free heap 41168
WiFi IP address 192.168.10.x
Signal strength -49dBm, channel 6, mode 802.11n, reconnections 0
Clock register 00002001
Socket states: 0 0 0 0 0 0 0 0

M122 B121
Diagnostics for board 121:
Duet TOOL1LC rev 1.1 or later firmware version 3.5.0-rc.2 (2023-12-15 13:41:02)
Bootloader ID: SAMC21 bootloader version 2.4 (2021-12-10)
All averaging filters OK
Never used RAM 2708, free system stack 91 words
Tasks: Move(3,nWait,0.1%,73) HEAT(2,nWait,11.4%,97) CanAsync(5,nWait,0.0%,54) CanRecv(3,nWait,0.4%,77) CanClock(5,nWait,0.6%,69) ACCEL(3,nWait,0.0%,17) TMC(2,delaying,101.1%,57) MAIN(1,running,154.7%,318) IDLE(0,ready,0.0%,27) AIN(2,delaying,159.0%,114), total 427.3%
Last reset 17:00:30 ago, cause: software
Last software reset data not available
Driver 0: pos 0, 568.8 steps/mm, standstill, SG min 0, read errors 0, write errors 0, ifcnt 101, reads 16617, writes 4, timeouts 1, DMA errors 0, CC errors 0, failedOp 0x71, steps req 0 done 91906
Moves scheduled 3087, completed 3087, in progress 0, hiccups 3, segs 40, step errors 0, maxLate 0 maxPrep 853, maxOverdue 0, maxInc 0, mcErrs 0, gcmErrs 0, ebfmin 0.00 max inf
Peak sync jitter -3/10, peak Rx sync delay 219, resyncs 0/0, no timer interrupt scheduled
VIN voltage: min 23.3, current 24.1, max 24.6
MCU temperature: min 38.6C, current 63.8C, max 69.2C
Last sensors broadcast 0x00000012 found 2 24 ticks ago, 0 ordering errs, loop time 0
CAN messages queued 1210805, send timeouts 0, received 533070, lost 0, errs 0, boc 0, free buffers 18, min 18, error reg 0
dup 0, oos 0/0/0/0, bm 0, wbm 0, rxMotionDelay 334, adv 35725/74654
Accelerometer: LIS3DH, status: 00
Inductive sensor: not found
I2C bus errors 0, naks 0, contentions 0, other errors 0
=== Filament sensors ===
Interrupt 5726621 to 0us, poll 5 to 1436us
Driver 0: ok

And here is the relevant config files & sliced job.
(All these files are grabbed from the printer, so it's 100% the config I'm currently running)

[droftarts]

@Exerqtor have we already ascertained if the problem goes away when input shaping and/or pressure advance are disabled? What size nozzle are you using?

Ian

[Exerqtor]

@droftarts said in 1LC - stepper randomly reversing - ≤3.5.0-r1+:

@Exerqtor have we already ascertained if the problem goes away when input shaping and/or pressure advance are disabled? What size nozzle are you using?

Ian

No I haven't tried that out yet, been waiting on feedback as to where/what to start with to be honest.

I can try disabling Input Shaping first and see if that yield different results on the same job that I supplied in my last post.

---

I can confirm that it still happens with IS disabled:

M593
Input shaping is disabled

M122
=== Diagnostics ===
RepRapFirmware for Duet 3 Mini 5+ version 3.5.0-rc.2 (2023-12-15 13:33:26) running on Duet 3 Mini5plus WiFi (standalone mode)
Board ID: XNHXF-HR6KL-K65J0-409N2-K9W1Z-RV2MZ
Used output buffers: 25 of 40 (40 max)
=== RTOS ===
Static ram: 102812
Dynamic ram: 128544 of which 0 recycled
Never used RAM 5420, free system stack 120 words
Tasks: NETWORK(2,nWait,23.7%,179) HEAT(3,nWait,0.0%,328) Move(4,nWait,2.4%,243) CanReceiv(6,nWait,0.1%,776) CanSender(5,nWait,0.0%,328) CanClock(7,delaying,0.0%,350) TMC(4,nWait,0.8%,74) MAIN(1,running,66.8%,584) IDLE(0,ready,5.3%,29) AIN(4,delaying,0.9%,264), total 100.0%
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 18:04:31 ago, cause: software
Last software reset at 2023-12-15 17:21, reason: User, Gcodes spinning, available RAM 12348, slot 2
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00000000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x04
Aux0 errors 0,0,0
MCU revision 3, ADC conversions started 65070749, completed 65070749, timed out 0, errs 0
MCU temperature: min 46.0, current 46.4, max 46.7
Supply voltage: min 23.8, current 24.2, max 24.3, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 198/28, heap memory allocated/used/recyclable 2048/1836/1416, gc cycles 126614
Events: 0 queued, 0 completed
Driver 0: standstill, SG min 0, read errors 0, write errors 0, ifcnt 10, reads 1329, writes 0, timeouts 0, DMA errors 0, CC errors 0
Driver 1: ok, SG min 0, read errors 0, write errors 0, ifcnt 10, reads 1329, writes 0, timeouts 0, DMA errors 0, CC errors 0
Driver 2: ok, SG min 0, read errors 0, write errors 0, ifcnt 160, reads 1329, writes 0, timeouts 0, DMA errors 0, CC errors 0
Driver 3: ok, SG min 0, read errors 0, write errors 0, ifcnt 162, reads 1329, writes 0, timeouts 0, DMA errors 0, CC errors 0
Driver 4: ok, SG min 0, read errors 0, write errors 0, ifcnt 159, reads 1329, writes 0, timeouts 0, DMA errors 0, CC errors 0
Driver 5: not present
Driver 6: not present
Date/time: 2023-12-16 11:25:42
Cache data hit count 4294967295
Slowest loop: 9.56ms; fastest: 0.11ms
=== Storage ===
Free file entries: 16
SD card 0 detected, interface speed: 22.5MBytes/sec
SD card longest read time 6.0ms, write time 1.0ms, max retries 0
=== Move ===
DMs created 83, segments created 41, maxWait 842ms, bed compensation in use: mesh, height map offset 0.000, max steps late 1, ebfmin 0.00, ebfmax 0.00
next step interrupt due in 107 ticks, enabled
Moves shaped first try 0, on retry 0, too short 0, wrong shape 0, maybepossible 0
=== DDARing 0 ===
Scheduled moves 1066, completed 1044, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state 3
=== DDARing 1 ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters 0 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0
Heater 0 is on, I-accum = 0.4
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Movement locks held by null, null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is doing "G1 X226.271 Y197.626 E.02799" 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
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon is doing "G4 P10" in state(s) 0 0, running macro
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
File2 is idle in state(s) 0
Queue2 is idle in state(s) 0
Q0 segments left 1, axes/extruders owned 0x0000807
Code queue 0 is empty
Q1 segments left 0, axes/extruders owned 0x0000000
Code queue 1 is empty
=== Filament sensors ===
check 0 clear 0
Extruder 0 sensor: no filament
=== CAN ===
Messages queued 509, received 517, lost 0, errs 0, boc 0
Longest wait 0ms for reply type 0, peak Tx sync delay 9, free buffers 26 (min 25), ts 126/126/0
Tx timeouts 0,0,0,0,0,0
=== Network ===
Slowest loop: 20.63ms; fastest: 0.06ms
Responder states: MQTT(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
HTTP sessions: 1 of 8
=== WiFi ===
Interface state: active
Module is connected to access point 
Failed messages: pending 0, notrdy 0, noresp 0
Firmware version 2.1beta6
MAC address c4:5b:be:ce:91:93
Module reset reason: Power up, Vcc 3.38, flash size 2097152, free heap 42988
WiFi IP address 192.168.10.x
Signal strength -50dBm, channel 6, mode 802.11n, reconnections 0
Clock register 00002001
Socket states: 0 0 0 0 0 0 0 0

M122 B121
Diagnostics for board 121:
Duet TOOL1LC rev 1.1 or later firmware version 3.5.0-rc.2 (2023-12-15 13:41:02)
Bootloader ID: SAMC21 bootloader version 2.4 (2021-12-10)
All averaging filters OK
Never used RAM 2708, free system stack 91 words
Tasks: Move(3,nWait,0.0%,73) HEAT(2,nWait,0.3%,97) CanAsync(5,nWait,0.0%,54) CanRecv(3,nWait,0.0%,77) CanClock(5,nWait,0.0%,69) ACCEL(3,nWait,0.0%,17) TMC(2,delaying,3.0%,57) MAIN(1,running,91.9%,318) IDLE(0,ready,0.0%,27) AIN(2,delaying,4.7%,114), total 100.0%
Last reset 18:04:47 ago, cause: software
Last software reset data not available
Driver 0: pos 0, 568.8 steps/mm, standstill, SG min 0, read errors 0, write errors 0, ifcnt 103, reads 28066, writes 2, timeouts 0, DMA errors 0, CC errors 0, steps req 0 done 38048
Moves scheduled 3098, completed 3098, in progress 0, hiccups 1, segs 40, step errors 0, maxLate 0 maxPrep 334, maxOverdue 0, maxInc 0, mcErrs 0, gcmErrs 0, ebfmin 0.00 max inf
Peak sync jitter -2/11, peak Rx sync delay 215, resyncs 0/0, no timer interrupt scheduled
VIN voltage: min 23.3, current 24.1, max 24.5
MCU temperature: min 38.6C, current 57.8C, max 69.2C
Last sensors broadcast 0x00000012 found 2 103 ticks ago, 0 ordering errs, loop time 0
CAN messages queued 79268, send timeouts 0, received 35985, lost 0, errs 0, boc 0, free buffers 18, min 18, error reg 0
dup 0, oos 0/0/0/0, bm 0, wbm 0, rxMotionDelay 323, adv 35708/74652
Accelerometer: LIS3DH, status: 00
Inductive sensor: not found
I2C bus errors 0, naks 0, contentions 0, other errors 0
=== Filament sensors ===
Interrupt 5726621 to 0us, poll 5 to 1432us
Driver 0: ok

[Exerqtor]

@droftarts And the exact same with both Input Shaping and Pressure Advance disabled:

M593
Input shaping is disabled
M572 D0
Extruder pressure advance: 0.000

M122
=== Diagnostics ===
RepRapFirmware for Duet 3 Mini 5+ version 3.5.0-rc.2 (2023-12-15 13:33:26) running on Duet 3 Mini5plus WiFi (standalone mode)
Board ID: XNHXF-HR6KL-K65J0-409N2-K9W1Z-RV2MZ
Used output buffers: 3 of 40 (40 max)
=== RTOS ===
Static ram: 102812
Dynamic ram: 128544 of which 0 recycled
Never used RAM 5420, free system stack 120 words
Tasks: NETWORK(2,nWait,22.2%,179) HEAT(3,nWait,0.0%,328) Move(4,nWait,0.5%,243) CanReceiv(6,nWait,0.1%,776) CanSender(5,nWait,0.0%,328) CanClock(7,delaying,0.0%,350) TMC(4,nWait,0.7%,74) MAIN(1,running,70.6%,584) IDLE(0,ready,5.0%,29) AIN(4,delaying,0.9%,264), total 100.0%
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 18:14:11 ago, cause: software
Last software reset at 2023-12-15 17:21, reason: User, Gcodes spinning, available RAM 12348, slot 2
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00000000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x04
Aux0 errors 0,0,0
MCU revision 3, ADC conversions started 65650769, completed 65650768, timed out 0, errs 0
MCU temperature: min 42.2, current 46.2, max 46.8
Supply voltage: min 23.4, current 24.2, max 24.5, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 198/28, heap memory allocated/used/recyclable 2048/716/296, gc cycles 127712
Events: 0 queued, 0 completed
Driver 0: ok, SG min 0, read errors 0, write errors 0, ifcnt 29, reads 30499, writes 19, timeouts 0, DMA errors 0, CC errors 0
Driver 1: ok, SG min 0, read errors 0, write errors 0, ifcnt 29, reads 30499, writes 19, timeouts 0, DMA errors 0, CC errors 0
Driver 2: ok, SG min 0, read errors 0, write errors 0, ifcnt 168, reads 30510, writes 8, timeouts 0, DMA errors 0, CC errors 0
Driver 3: ok, SG min 0, read errors 0, write errors 0, ifcnt 169, reads 30512, writes 7, timeouts 0, DMA errors 0, CC errors 0
Driver 4: ok, SG min 0, read errors 0, write errors 0, ifcnt 167, reads 30510, writes 8, timeouts 0, DMA errors 0, CC errors 0
Driver 5: not present
Driver 6: not present
Date/time: 2023-12-16 11:35:22
Cache data hit count 4294967295
Slowest loop: 216.18ms; fastest: 0.09ms
=== Storage ===
Free file entries: 16
SD card 0 detected, interface speed: 22.5MBytes/sec
SD card longest read time 6.6ms, write time 5.2ms, max retries 0
=== Move ===
DMs created 83, segments created 41, maxWait 322812ms, bed compensation in use: mesh, height map offset 0.000, max steps late 1, ebfmin 0.00, ebfmax 0.00
next step interrupt due in 50 ticks, enabled
Moves shaped first try 0, on retry 0, too short 0, wrong shape 0, maybepossible 0
=== DDARing 0 ===
Scheduled moves 842, completed 836, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 1], CDDA state 3
=== DDARing 1 ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters 0 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0
Heater 0 is on, I-accum = 0.5
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Movement locks held by null, null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is idle in state(s) 3
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
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon is doing "G4 P10" in state(s) 0 0, running macro
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
File2 is idle in state(s) 0
Queue2 is idle in state(s) 0
Q0 segments left 1, axes/extruders owned 0x0000807
Code queue 0 is empty
Q1 segments left 0, axes/extruders owned 0x0000000
Code queue 1 is empty
=== Filament sensors ===
check 0 clear 0
Extruder 0 sensor: no filament
=== CAN ===
Messages queued 6599, received 12089, lost 0, errs 0, boc 0
Longest wait 6ms for reply type 6013, peak Tx sync delay 262, free buffers 26 (min 25), ts 2900/2900/0
Tx timeouts 0,0,0,0,0,0
=== Network ===
Slowest loop: 209.17ms; fastest: 0.06ms
Responder states: MQTT(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
HTTP sessions: 1 of 8
=== WiFi ===
Interface state: active
Module is connected to access point 
Failed messages: pending 0, notrdy 0, noresp 0
Firmware version 2.1beta6
MAC address c4:5b:be:ce:91:93
Module reset reason: Power up, Vcc 3.38, flash size 2097152, free heap 39732
WiFi IP address 192.168.10.x
Signal strength -48dBm, channel 6, mode 802.11n, reconnections 0
Clock register 00002001
Socket states: 0 0 0 0 0 0 0 0

M122 B121
Diagnostics for board 121:
Duet TOOL1LC rev 1.1 or later firmware version 3.5.0-rc.2 (2023-12-15 13:41:02)
Bootloader ID: SAMC21 bootloader version 2.4 (2021-12-10)
All averaging filters OK
Never used RAM 2708, free system stack 91 words
Tasks: Move(3,nWait,0.0%,73) HEAT(2,nWait,0.4%,97) CanAsync(5,nWait,0.0%,54) CanRecv(3,nWait,0.0%,77) CanClock(5,nWait,0.0%,69) ACCEL(3,nWait,0.0%,17) TMC(2,delaying,3.0%,57) MAIN(1,running,91.8%,318) IDLE(0,ready,0.0%,27) AIN(2,delaying,4.7%,114), total 100.0%
Last reset 18:14:15 ago, cause: software
Last software reset data not available
Driver 0: pos 0, 568.8 steps/mm, standstill, SG min 0, read errors 0, write errors 0, ifcnt 105, reads 21809, writes 2, timeouts 0, DMA errors 0, CC errors 0, steps req 0 done 38048
Moves scheduled 3109, completed 3109, in progress 0, hiccups 2, segs 40, step errors 0, maxLate 0 maxPrep 261, maxOverdue 0, maxInc 0, mcErrs 0, gcmErrs 0, ebfmin 0.00 max inf
Peak sync jitter -1/10, peak Rx sync delay 213, resyncs 0/0, no timer interrupt scheduled
VIN voltage: min 23.4, current 24.1, max 24.5
MCU temperature: min 38.6C, current 61.1C, max 69.2C
Last sensors broadcast 0x00000012 found 2 168 ticks ago, 0 ordering errs, loop time 0
CAN messages queued 11838, send timeouts 0, received 6345, lost 0, errs 0, boc 0, free buffers 18, min 18, error reg 0
dup 0, oos 0/0/0/0, bm 0, wbm 0, rxMotionDelay 324, adv 35827/74649
Accelerometer: LIS3DH, status: 00
Inductive sensor: not found
I2C bus errors 0, naks 0, contentions 0, other errors 0
=== Filament sensors ===
Interrupt 5726621 to 0us, poll 5 to 1488us
Driver 0: ok

[Exerqtor]

@dc42
I just removed all the "extra stuff "that was put in daemon.g to see if that mad a difference but it still starts reversing. Same if i "disable" daemon.g or run it completely empty.

Now it's on the first line of my 3-line purge/prime code each time "no matter" what i do.

Is it any apparent issue from the M122 reports i've been posting, or is that just a complete waste of time to post those?

---

Feel like i'm pulling straws out of my ass at this point, but could formating the sd-card and reinstalling all the firmware be worth a try?

I mean, i've been installing so many different builds the last 3-4months maybe something got messed up?

Or is that just nonsense?

[A Former User]

@Exerqtor If it makes you feel better I figured out the problem I have been having for the last week is the extruder occasionally stopping. Using a Duet 3 mini 5+ with a RRF-36 toolboard. 3.5.0-R1 on the board and 3.5.0.r1+101 on the toolboard.

I thought it was cooling related since it is a new Dragonfly BMO hotend and EVA34 setup thanks to a fan failure earlier. But nothing is wrong, the heatbreak is clear, the nozzle is not clogged Went through the wiring too to make sure no momentaries were happening.

Not seeing an error and no desire to try it again and waste more expensive carbon fiber PC filament. Plus I am going to be tied up for the next couple weeks, So I'll park that printer and revisit it early next year.

I did kill daemon.g to see if it was related since that and the new hotend assembly were the changes recently done and it did not help. Not seeing any crashes but I am running a different setup than you. Win 10 with Cura slicing the files and firefox running DWC. And the 2 reprints also failed. They sure mess up a print when they happen.

[Exerqtor]

@KenW
Sucks to hear you also have problems, but it really does make me feel better to hear that it's not another "one off" issue, and it's something happening to others as well 😮‍💨

I've got alot of projects I hoped to get done by/in the comming holidays, but it's looking increasingly less and less likely 💩

It's luckily some bog standard ABS i've had to throw in the fuckit-bucket, but it's still annoying af.

[A Former User]

@Exerqtor That is the only printer running the beta firmware. It has to run it to use the RRF-36 toolboard. I had noticed your post but was ignoring them since I thought it was filament getting stuck in the heatbreak or possibly carbon fiber jamming the nozzle. I can take down and reassemble the EVA in minutes now with all the practice I have been getting.

Since mine is not acting up exactly like yours unless your extruder just stops for a bit then restarts with no error maybe it's another issue.
After I get back home in a few weeks I'll play around more with it,. Gave up today on the print I was trying to take with me.

[Exerqtor]

@KenW I also thought i had gotten a clog or something when it started happening again so i get your logic lol. It will be interesting seeing how it plays out when you get some time to look at it again.

---

I just reverted to 3.5.0b4 on the mobo & toolboard to see what happens at least, too be continued.

EDIT:
After reverting too 3.5.0b4 I was finally able to complete the print without issues.

I'm gonna try doing some more prints after work tomorrow to see if the "solution" holds, but it sure looks like the problem lies in 3.5.0-rc1/2.

[Exerqtor]

@dc42 I've ran over ballpark 24hr of prints on 2.5.0b4 now without any issues.

Weird that noone else reports about this.

[A Former User]

@Exerqtor Not home to look at anything but it might depend on the setup. I had another printer earlier that I also had a duet 3 mini 5+ with 3.5.0 r.1 and a RRF-36 mounted with 3.5.0 r1 firmware. That was an ender 3 pro, a simple bed slinger. I did multiple test prints on it before it was wrapped up as a gift and hauled up here. In 5 days it gets to live again and hopefully will still be problem free.

The printer giving me problems is a CoreXY with 3 Z steppers and a klicky so a bit more complex and different motion system. Also a Duet 3 mini 5_ with the other RRF-36 and the same firmware as the ender.

[Exerqtor]

@dc42 I tried installing 3.5.0-rc2 again, with a freshly formated SD card etc. to see if that might help (downloaded the binaries again also just in case) and it still shits the bed:

M122
=== Diagnostics ===
RepRapFirmware for Duet 3 Mini 5+ version 3.5.0-rc.2 (2023-12-14 10:30:57) running on Duet 3 Mini5plus WiFi (standalone mode)
Board ID: XNHXF-HR6KL-K65J0-409N2-K9W1Z-RV2MZ
Used output buffers: 4 of 40 (40 max)
=== RTOS ===
Static ram: 102812
Dynamic ram: 128720 of which 0 recycled
Never used RAM 5196, free system stack 118 words
Tasks: NETWORK(1,ready,119.4%,195) HEAT(3,nWait,0.7%,328) Move(4,nWait,14.5%,239) CanReceiv(6,nWait,1.2%,774) CanSender(5,nWait,0.3%,327) CanClock(7,delaying,0.2%,350) TMC(4,nWait,17.4%,74) MAIN(1,running,53.1%,580) IDLE(0,ready,19.8%,29) AIN(4,delaying,20.2%,264), total 246.8%
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 24:56:40 ago, cause: software
Last software reset at 2023-12-21 16:42, reason: User, Gcodes spinning, available RAM 12348, slot 0
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00446000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x04
Aux0 errors 0,0,0
MCU revision 3, ADC conversions started 89801376, completed 89801376, timed out 0, errs 0
MCU temperature: min 34.4, current 46.8, max 47.3
Supply voltage: min 8.0, current 23.9, max 24.7, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 198/28, heap memory allocated/used/recyclable 2048/532/136, gc cycles 15646
Events: 1 queued, 1 completed
Driver 0: ok, SG min 0, read errors 0, write errors 1, ifcnt 33, reads 7119, writes 123, timeouts 1, DMA errors 0, CC errors 0, failedOp 0x72
Driver 1: ok, SG min 0, read errors 0, write errors 1, ifcnt 33, reads 7120, writes 123, timeouts 0, DMA errors 0, CC errors 0
Driver 2: ok, SG min 0, read errors 0, write errors 1, ifcnt 149, reads 7187, writes 56, timeouts 0, DMA errors 0, CC errors 0
Driver 3: ok, SG min 0, read errors 0, write errors 1, ifcnt 145, reads 7185, writes 57, timeouts 0, DMA errors 0, CC errors 0
Driver 4: ok, SG min 0, read errors 0, write errors 1, ifcnt 144, reads 7187, writes 55, timeouts 1, DMA errors 0, CC errors 0, failedOp 0x01
Driver 5: not present
Driver 6: not present
Date/time: 2023-12-22 17:38:55
Cache data hit count 4294967295
Slowest loop: 226.03ms; fastest: 0.09ms
=== Storage ===
Free file entries: 16
SD card 0 detected, interface speed: 22.5MBytes/sec
SD card longest read time 11.0ms, write time 62.9ms, max retries 0
=== Move ===
DMs created 83, segments created 43, maxWait 59621605ms, bed compensation in use: mesh, height map offset 0.000, max steps late 1, ebfmin 0.00, ebfmax 0.00
next step interrupt due in 37 ticks, enabled
Moves shaped first try 52954, on retry 20590, too short 71476, wrong shape 255081, maybepossible 11645
=== DDARing 0 ===
Scheduled moves 2684, completed 2644, hiccups 1184, stepErrors 0, LaErrors 1095, Underruns [0, 0, 4], CDDA state 3
=== DDARing 1 ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters 0 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0
Heater 0 is on, I-accum = 0.3
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Movement locks held by null, null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is doing "G1 X131.338 Y134.213 E.09057" 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
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon is doing "G4 P250" in state(s) 0 0, running macro
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
File2 is idle in state(s) 0, sync state 1
Queue2 is idle in state(s) 0
Q0 segments left 1, axes/extruders owned 0x0000807
Code queue 0 is empty
Q1 segments left 0, axes/extruders owned 0x0000000
Code queue 1 is empty
=== Filament sensors ===
check 0 clear 0
Extruder 0 sensor: no filament
=== CAN ===
Messages queued 1264763, received 1844452, lost 0, errs 1, boc 0
Longest wait 6ms for reply type 6013, peak Tx sync delay 276, free buffers 26 (min 24), ts 449002/449001/0
Tx timeouts 0,0,0,0,0,0
=== Network ===
Slowest loop: 211.13ms; fastest: 0.00ms
Responder states: MQTT(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
HTTP sessions: 1 of 8
=== WiFi ===
Interface state: active
Module is connected to access point 
Failed messages: pending 0, notrdy 0, noresp 0
Firmware version 2.1beta6
MAC address c4:5b:be:ce:91:93
Module reset reason: Power up, Vcc 3.38, flash size 2097152, free heap 36292
WiFi IP address 192.168.10.x
Signal strength -52dBm, channel 6, mode 802.11n, reconnections 0
Clock register 00002001
Socket states: 0 0 0 0 0 0 0 0

M122 B121
Diagnostics for board 121:
Duet TOOL1LC rev 1.1 or later firmware version 3.5.0-rc.2 (2023-12-14 08:58:51)
Bootloader ID: SAMC21 bootloader version 2.4 (2021-12-10)
All averaging filters OK
Never used RAM 2580, free system stack 89 words
Tasks: Move(3,nWait,2.9%,71) HEAT(2,nWait,7.9%,91) CanAsync(5,nWait,0.0%,55) CanRecv(3,nWait,1.0%,77) CanClock(5,nWait,0.4%,67) ACCEL(3,nWait,0.0%,53) TMC(2,nWait,70.2%,57) MAIN(1,running,53.1%,316) IDLE(0,ready,0.0%,27) AIN(2,delaying,111.1%,114), total 246.6%
Last reset 24:56:46 ago, cause: software
Last software reset data not available
Driver 0: pos 0, 568.8 steps/mm, ok, SG min 0, read errors 5, write errors 1, ifcnt 112, reads 29381, writes 30, timeouts 10, DMA errors 0, CC errors 0, failedOp 0x01, steps req 0 done 54758132
Moves scheduled 451072, completed 451072, in progress 0, hiccups 6856, segs 42, step errors 0, maxLate 2 maxPrep 759, maxOverdue 7315, maxInc 2784, mcErrs 0, gcmErrs 0, ebfmin -1.00 max inf
Peak sync jitter -2/12, peak Rx sync delay 280, resyncs 0/0, no timer interrupt scheduled
VIN voltage: min 8.3, current 24.1, max 24.6
MCU temperature: min 39.4C, current 73.3C, max 79.5C
Last sensors broadcast 0x00000012 found 2 138 ticks ago, 0 ordering errs, loop time 0
CAN messages queued 1844535, send timeouts 0, received 1264877, lost 0, errs 1230, boc 0, free buffers 18, min 17, error reg 110000
dup 0, oos 0/0/0/0, bm 0, wbm 0, rxMotionDelay 390, adv 34547/74657
Accelerometer: LIS3DH, status: 00
Inductive sensor: not found
I2C bus errors 0, naks 6, contentions 0, other errors 0
=== Filament sensors ===
Interrupt 5726621 to 0us, poll 4 to 2681us

And it's still happening at random points.

[droftarts]

@Exerqtor I can’t remember if you have posted your config.g recently, but if not, could you post it again, please? If it calls macros, maybe a zip of you sys folder might be easier, to include them all. It’s just the Mini 5+ and a 1LC? What revision of each board? And what extruder type and motor? Does it still do it if you run a ‘dry’ job with no filament? Finally, can you post a Gcode file that provokes the retractions? Though I suspect it isn’t related to the Gcode itself.

Ian

[Exerqtor]

@droftarts I'm not by the printer now so I'll post everything later.

Yup it's just the Mini (1.02 WiFi) and 1LC (1.2) connected directly to eachother.

The extruder is a Bondtech LGX-lite with the stock motor they come with (running the Bondtech adviced current).. Uuhm I haven't tried a "dry" job, but since the stepper reverses the filament rather than extrude it when it happens i doubt it's load related, if thats what you were thinking of 😅

Regarding a Gcode file it's posted several through the thread here, but I've made a cloud folder with most of the config files and a job file in this post you can have a look at.

Doubt it's anything else than a firmware bug tbh. since 3.5.0-b4 don't act up like this at all. The symptoms and behaviour i'm experiencing is exactly the same ones that plagued 3.5.0-b3.

[droftarts]

@Exerqtor okay thanks. I don’t have an LGX, but I’ve probably got a motor similar enough. I might get enough time between Xmas and New Year to setup a bench test. I’ve also got a stepper motor analyser, which might be helpful.

Ian

[Exerqtor]

@droftarts Np, don't burn your xmas on this lol.
I just reverted to 3.5.0-b4 again so i'm good over the holidays ✌️

Wouldn't stepper specific issues have caused it to stall out rather than reverse btw (if that's what you're think about)? And again, since it don't happen on 3.5.0-b4 with the exact same config🤔

[T3P3Tony]

@Exerqtor reported here:

https://github.com/Duet3D/RepRapFirmware/issues/942

T3P3 created this issue in Duet3D/RepRapFirmware

closed 1LC - stepper randomly reversing - ≤3.5.0-r1 #942

[Exerqtor]

@T3P3Tony said in 1LC - stepper randomly reversing - ≤3.5.0-r1:

@Exerqtor reported here:

https://github.com/Duet3D/RepRapFirmware/issues/942

Hopefully this gets parched out right quick so I can update the fw and start using the StrideMax! 🤞

[dc42]

@Exerqtor I have reviewed the code that manages motor direction on the 1XD. At the start of every move, RRF sets the direction of the driver, regardless of whether it should already be correct. So the only way that I can see for the direction to reverse and remain reversed is if the direction control set by M569 has changed. This might happen in the following ways:

1. The memory that holds the direction value could have become corrupted. In this case, if M569 is run then it should report the incorrect direction value.
2. The board could have reset and the direction value changed back to the default. In this case, M569 would report the wrong value and M122 would report that a reset had occurred.
3. The main board has sent a M569 command to the tool board. This seems unlikely.

Therefore, please can you run the following test:

• Upgrade your system to 3.5.0-rc.2
• Start one of the prints that is likely to reverse direction
• Once the print is going correctly, run M569 P121.0 and M122 B121 (if the tool board address is not 121 then change these commands appropriately)
• Wait until the extruder reverses direction
• Run M569 P121.0 and M122 B121 again

Then post all the results here.

Thanks - David

[Exerqtor]

@dc42 I will try it, but i don't think it's fully reversing either since it sure don't reverse/retract filament in the same rate that it would have extruded it under normal operation. If that makes sense?

It's experiencing it the same way as it did in the 3.5.0-beta2 bug.

I'll report back as soon as I get time to test it never the less.