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    Duet 3 mini 5+/FYSETC Big Dipper on FFCP/Flashforge Creator Pro

    RepRapFirmware on other controllers
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    • Inlinebrotherundefined
      Inlinebrother
      last edited by

      Ok, I found your answer for the same question here
      So i think one of the ways to fix that is to get the wire out of the casing

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      • Inlinebrotherundefined
        Inlinebrother
        last edited by Inlinebrother

        But moving the thermocouple wires away from the other wires didn't help
        Only one of the thermocouples for the right extruder now is working correctly, but i can't say exactly what helped, maybe i crimped it better. Although it still can catch the interference from the other thermocouple, even if using it alone does not provoke interference
        They are still near the drives on the head, and i think that is where they pick this interference

        I wonder if using a thermistor will help
        Flexion extruder allows to install it, and the board has ports for temp sensors

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        • Inlinebrotherundefined
          Inlinebrother
          last edited by

          recrimping didn't help, i think I'll have to go with the thermistor
          that way i will not need a daughterboard and i guess that might help

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          • Inlinebrotherundefined
            Inlinebrother
            last edited by Inlinebrother

            Captain's log
            Installed and configured thermistor NTC 3950
            Now I don't see 2000 degrees when extruding or retracting filament

            But my printer shuts down in a minute after that and then it is trying to restart over and over again, until I turn it off and turn on again

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            • Inlinebrotherundefined
              Inlinebrother
              last edited by

              It seems that @dc42 helped me again, even without saying a thing)
              I found my answer here https://forum.duet3d.com/topic/15897/duet-wifi-resetting-part-way-through-prints/30
              I disabled endstops, and it seems that the problem is solved
              Though I need to wire the endstops properly

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              • Inlinebrotherundefined
                Inlinebrother @oliof
                last edited by

                @oliof I think you are right, I didn't understand you at first) thank you)

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                • Inlinebrotherundefined
                  Inlinebrother
                  last edited by

                  Sooo, I did recrimp endstops
                  Thought now it is ready to go,
                  connected Cura via plugin OK
                  Started to heat the bed
                  After the extruder fan started to work the printer started to restart again
                  Then in a few minutes, after the printer cooled down, I thought I'll try to change some settings for fans
                  But the printer began to restart in an idle mode. I did nothing, and it started its disco.

                  Now I don't know what can be the problem
                  Maybe something should be done to a board fan frequency, that is the only thing working when the printer is idle

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                  • Inlinebrotherundefined
                    Inlinebrother
                    last edited by

                    Ok I started from scratch
                    I think the problem was with the board loosely fixed, it might have touched some parts of the case
                    I also checked all the wires and reinserted them, trying to fix them as tight as possible
                    Now it seem to work

                    Started the test print, I'll write an update after that
                    For now I hear the sound of silence and it is great
                    I'll have to change the coordinates though, the print started on the corner of the build plate

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                    • Inlinebrotherundefined
                      Inlinebrother
                      last edited by

                      This post is deleted!
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                      • Inlinebrotherundefined
                        Inlinebrother
                        last edited by

                        Finally it is working
                        Though I need to adjust tool offsets a bit more
                        And I also had to change the cooling fan number in cura settings for every extruder to the pin number of the fan (in my case fan #3)
                        And I need to try dual extruder printing

                        Thank you all who helped me achieve this.
                        Hope my story will help somebody)

                        I'll publish my design for the Big Dipper holder and my configs a bit later.

                        1 Reply Last reply Reply Quote 1
                        • Inlinebrotherundefined
                          Inlinebrother
                          last edited by

                          Here is my design for the holder
                          https://www.thingiverse.com/thing:6781025/files

                          Configs have to be refined, so I will post them some time in the future

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                          • Inlinebrotherundefined
                            Inlinebrother
                            last edited by

                            New update:
                            After some prints, I saw issues with layers positioning at different heights. Tried to tighten the belts aaand my printer stopped working)

                            For some reason the problem occured only when the bed was heating, so I recrimped the thermistor, because I made a mistake and the cables were in reverse order. Then I recrimped the bed power cables that are connected to the PSU. And I did that for a week or even more every evening)
                            I found out that I used 1.27 mm2 cable for bed power and that I had to use the right crimper tool
                            And I tried and tried, again and again to crimp even better
                            Until I checked the bottom of the board holder and found out that extruder cables touched the screw
                            I guess that was enough to short the board
                            My board firmware even got corrupted and I had to reflash it via USB
                            It even stopped connecting via serial port, only direct USB download of the .uf file helped me

                            Then i also had to fix other cables as well that touch the closing door of the bottom side of the printer

                            So I write this to warn you to be careful with your wiring)

                            But I still have this issue with my layers though. So I will continue to look for a solution.

                            Also I took the opportunity and installed the Z-probe, though I need a holder to start using it
                            And I haven't configured it yet

                            Also I found some useful resources along the road
                            For example a video about crimping -

                            And a guide with pictures how to wire a dual extruder printer to the Big Dipper
                            https://www.youtube.com/watch?v=GZOh1NzqzzU
                            Although the cooling and board fans seem to be wired incorrectly there
                            https://github.com/FYSETC/FYSETC-BIG_DIPPER/tree/main/example/Independent Dual Extruder

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                            • Inlinebrotherundefined
                              Inlinebrother
                              last edited by

                              I guess another problem is with my power supply like @garyd9 had when turning on the bed heater
                              https://forum.duet3d.com/topic/3553/converting-a-flashforge-creator-pro-to-use-duet/3

                              I wonder what should I take into account if I want to use a 500w 24v PSU
                              Should I replace the original 1.5 mm2 power cables?
                              Will the board survive the current?

                              PS: it is interesting that I had some almost successful prints even with a 320w PSU
                              Although there were signs of missed steps

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                              • Inlinebrotherundefined
                                Inlinebrother
                                last edited by

                                Ok, I think the PSU was not a problem, because I get shutdowns even with the 500w PSU after trying to run a bed heater. Though I had some restarts in the idle mode too. Also after the shutdown it was hard to recover on the old PSU. With a new PSU it's the board manages to restart. Or maybe I crimped the wires a bit better now, but not enough for the bed heating

                                Two times I managed to catch an error Vdd Brownout

                                m122
=== Diagnostics ===
RepRapFirmware for Duet 3 Mini 5+ version 3.5.3 (2024-09-18 11:25:48) running on Duet 3 Mini5plus WiFi (standalone mode)
Board ID: RHYS5-6J9MK-K65J0-40TK2-JRW2Z-ZLX8A
Used output buffers: 3 of 40 (18 max)
=== RTOS ===
Static ram: 103368
Dynamic ram: 121884 of which 12 recycled
Never used RAM 16484, free system stack 206 words
Tasks: NETWORK(2,nWait 7,9.7%,211) HEAT(3,nWait 1,0.0%,331) Move(4,nWait 6,0.0%,355) CanReceiv(6,nWait 1,0.0%,939) CanSender(5,nWait 7,0.0%,336) CanClock(7,delaying,0.0%,334) TMC(4,nWait 6,1.4%,110) MAIN(1,running,86.3%,665) IDLE(0,ready,1.8%,29) AIN(4,delaying,0.8%,264), total 100.0%
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:00:12 ago, cause: Vdd brownout
Last software reset at 2024-10-06 18:52, reason: User, Gcodes spinning, available RAM 16484, slot 2
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00000000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
MCU revision 3, ADC conversions started 9505, completed 9505, timed out 0, errs 0
MCU temperature: min 31.1, current 31.8, max 32.0
Supply voltage: min 24.3, current 24.3, max 24.4, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0
Events: 0 queued, 0 completed
Driver 0: standstill, SG min 0, read errors 0, write errors 0, ifcnt 11, reads 1101, writes 11, timeouts 0, DMA errors 0, CC errors 0
Driver 1: standstill, SG min 0, read errors 0, write errors 0, ifcnt 11, reads 1101, writes 11, timeouts 0, DMA errors 0, CC errors 0
Driver 2: standstill, SG min 0, read errors 0, write errors 0, ifcnt 10, reads 1101, writes 10, timeouts 0, DMA errors 0, CC errors 0
Driver 3: standstill, SG min 0, read errors 0, write errors 0, ifcnt 10, reads 1101, writes 10, timeouts 0, DMA errors 0, CC errors 0
Driver 4: standstill, SG min 0, read errors 0, write errors 0, ifcnt 10, reads 1102, writes 10, timeouts 0, DMA errors 0, CC errors 0
Driver 5: standstill, SG min 0, read errors 0, write errors 0, ifcnt 11, reads 1101, writes 11, timeouts 0, DMA errors 0, CC errors 0
Driver 6: standstill, SG min 0, read errors 0, write errors 0, ifcnt 10, reads 1101, writes 10, timeouts 0, DMA errors 0, CC errors 0
Date/time: 2024-10-06 18:53:48
Cache data hit count 24606480
Slowest loop: 4.50ms; fastest: 0.16ms
=== Storage ===
Free file entries: 20
SD card 0 detected, interface speed: 22.5MBytes/sec
SD card longest read time 0.7ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, segments created 0, maxWait 0ms, bed compensation in use: none, height map offset 0.000, max steps late 0, min interval 0, bad calcs 0, ebfmin 0.00, ebfmax 0.00
no step interrupt scheduled
Moves shaped first try 0, on retry 0, too short 0, wrong shape 0, maybepossible 0
=== DDARing 0 ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== 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
=== 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) 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 idle in state(s) 0
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 0, axes/extruders owned 0x0000000
Code queue 0 is empty
Q1 segments left 0, axes/extruders owned 0x0000000
Code queue 1 is empty
=== CAN ===
Messages queued 111, received 0, lost 0, errs 59936, boc 0
Longest wait 0ms for reply type 0, peak Tx sync delay 0, free buffers 26 (min 26), ts 63/0/0
Tx timeouts 0,0,62,0,0,47 last cancelled message type 4514 dest 127
=== Network ===
Slowest loop: 5.81ms; fastest: 0.00ms
Responder states: MQTT(0) HTTP(2) 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 2.1.0
MAC address 08:3a:8d:eb:24:44
Module reset reason: Power up, Vcc 3.36, flash size 2097152, free heap 37728
WiFi IP address 192.168.1.69
Signal strength -46dBm, channel 7, mode 802.11n, reconnections 0
Clock register 00002001
Socket states: 0 0 0 0 0 0 0 0

                                and once I had a HardFault

                                m122
=== Diagnostics ===
RepRapFirmware for Duet 3 Mini 5+ version 3.5.3 (2024-09-18 11:25:48) running on Duet 3 Mini5plus WiFi (standalone mode)
Board ID: RHYS5-6J9MK-K65J0-40TK2-JRW2Z-ZLX8A
Used output buffers: 2 of 40 (18 max)
=== RTOS ===
Static ram: 103368
Dynamic ram: 128524 of which 12 recycled
Never used RAM 9844, free system stack 206 words
Tasks: NETWORK(1,ready,3.7%,234) HEAT(3,nWait 1,0.0%,341) Move(4,nWait 6,0.0%,355) CanReceiv(6,nWait 1,0.0%,939) CanSender(5,nWait 7,0.0%,336) CanClock(7,delaying,0.0%,334) TMC(4,nWait 6,1.4%,110) MAIN(1,running,91.9%,665) IDLE(0,ready,2.2%,29) AIN(4,delaying,0.8%,264), total 100.0%
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:00:13 ago, cause: software
Last software reset at 2024-10-06 09:35, reason: HardFault invState, Display spinning, available RAM 9844, slot 1
Software reset code 0x406f HFSR 0x40000000 CFSR 0x00020000 ICSR 0x0045f803 BFAR 0xe000ed38 SP 0x20012008 Task NETW Freestk 482 ok
Stack: 0000017f 00000002 200014e4 00000000 200349db 000a0f9f 00000000 600f0000 00000000 00000000 00000000 00000000 20033824 00000800 20037538 2002c640 2001882c 2002c496 2001882c 2001ea80 00030523 00000000 00000000 00000000 200120b8 00000014 b5dd6ada
Error status: 0x00
MCU revision 3, ADC conversions started 10020, completed 10019, timed out 0, errs 0
MCU temperature: min 31.1, current 31.6, max 31.6
Supply voltage: min 24.1, current 24.1, max 24.2, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0
Events: 0 queued, 0 completed
Driver 0: standstill, SG min 0, read errors 0, write errors 1, ifcnt 55, reads 1152, writes 13, timeouts 0, DMA errors 0, CC errors 0
Driver 1: standstill, SG min 0, read errors 0, write errors 1, ifcnt 55, reads 1152, writes 13, timeouts 0, DMA errors 0, CC errors 0
Driver 2: standstill, SG min 0, read errors 0, write errors 1, ifcnt 55, reads 1152, writes 13, timeouts 0, DMA errors 0, CC errors 0
Driver 3: standstill, SG min 0, read errors 0, write errors 1, ifcnt 43, reads 1155, writes 10, timeouts 0, DMA errors 0, CC errors 0
Driver 4: standstill, SG min 0, read errors 0, write errors 1, ifcnt 43, reads 1155, writes 10, timeouts 0, DMA errors 0, CC errors 0
Driver 5: standstill, SG min 0, read errors 0, write errors 1, ifcnt 55, reads 1152, writes 13, timeouts 0, DMA errors 0, CC errors 0
Driver 6: standstill, SG min 0, read errors 0, write errors 1, ifcnt 55, reads 1152, writes 13, timeouts 0, DMA errors 0, CC errors 0
Date/time: 2024-10-06 09:35:23
Cache data hit count 13985808
Slowest loop: 5.59ms; fastest: 1.19ms
=== Storage ===
Free file entries: 20
SD card 0 detected, interface speed: 22.5MBytes/sec
SD card longest read time 1.4ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, segments created 0, maxWait 0ms, bed compensation in use: none, height map offset 0.000, max steps late 0, min interval 0, bad calcs 0, ebfmin 0.00, ebfmax 0.00
no step interrupt scheduled
Moves shaped first try 0, on retry 0, too short 0, wrong shape 0, maybepossible 0
=== DDARing 0 ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== 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
=== 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) 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 idle in state(s) 0
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 0, axes/extruders owned 0x0000000
Code queue 0 is empty
Q1 segments left 0, axes/extruders owned 0x0000000
Code queue 1 is empty
=== CAN ===
Messages queued 116, received 0, lost 0, errs 61873, boc 0
Longest wait 0ms for reply type 0, peak Tx sync delay 0, free buffers 26 (min 26), ts 66/0/0
Tx timeouts 0,0,65,0,0,49 last cancelled message type 30 dest 127
=== Network ===
Slowest loop: 3.91ms; 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 2.1.0
MAC address 08:3a:8d:eb:24:44
Module reset reason: Power up, Vcc 3.36, flash size 2097152, free heap 42932
WiFi IP address 192.168.1.69
Signal strength -38dBm, channel 7, mode 802.11n, reconnections 0
Clock register 00002001
Socket states: 0 0 0 0 0 0 0 0
                                jay_s_ukundefined 1 Reply Last reply Reply Quote 0
                                • jay_s_ukundefined
                                  jay_s_uk @Inlinebrother
                                  last edited by

                                  @Inlinebrother although your board is a big dipper as it uses the same MCU, dc42 may be interested in the output of the hard fault issue.
                                  Please see the thread here https://forum.duet3d.com/topic/36689/random-hard-fault-resets-on-duet-3-mini-wifi/

                                  Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                                  Inlinebrotherundefined 1 Reply Last reply Reply Quote 1
                                  • Inlinebrotherundefined
                                    Inlinebrother @jay_s_uk
                                    last edited by

                                    @jay_s_uk Hi, thank you, I updated my config file, and if I encounter HardFault again I will definitely write back

                                    1 Reply Last reply Reply Quote 1
                                    • Inlinebrotherundefined
                                      Inlinebrother
                                      last edited by Inlinebrother

                                      Next update:
                                      So I received better crimping tools for ring connectors and ferrules, and I am pretty sure they should not be the problem

                                      But the nature of the problem is EMI I think

                                      For some time now I had a suspicion that the original board was grounded and that might be the issue
                                      The case itself is connected to the PSU ground, and i checked with multimeter that the screws my holder is connected to the case with are connected to the ground, but the board is connected to the plastic holder and not the grounded case
                                      Today I tried to connect one of the screws to the ground, and I think that did help a bit
                                      But still there is a lot of current when the target temperature is reached and the power is turned on/off multiple times
                                      Next time I think I'll try to connect all possible screws of the board to the ground or to the grounded case

                                      1 Reply Last reply Reply Quote 0
                                      • Inlinebrotherundefined
                                        Inlinebrother
                                        last edited by Inlinebrother

                                        1000022141.jpg

                                        Grounding two screws that are near the power line seem to be helping

                                        infiniteloopundefined 1 Reply Last reply Reply Quote 0
                                        • Inlinebrotherundefined
                                          Inlinebrother
                                          last edited by Inlinebrother

                                          But that wasn't the solution for the problem
                                          It did help to protect the board and it stopped to restart, but now I heard a sound of a breakdown, so I have to continue my search

                                          1 Reply Last reply Reply Quote 0
                                          • Inlinebrotherundefined
                                            Inlinebrother
                                            last edited by

                                            I installed the default 320w psu and now it seems to work without any extra sounds

                                            1 Reply Last reply Reply Quote 1
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