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    why did my Printer melt?

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    • Killernoyundefined
      Killernoy
      last edited by

      My E3D Kraken did melt because every heater output is set to 100% at startup?
      config.g:

      ; General preferences
      G90 ; Send absolute coordinates...
      M83 ; ...but relative extruder moves

      ; 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
      M569 P4 S1 ; Physical drive 4 goes forwards
      M569 P5 S1 ; Physical drive 5 goes forwards
      M569 P6 S1 ; Physical drive 6 goes forwards
      M569 P7 S1 ; Physical drive 7 goes forwards
      M569 P8 S1 ; Physical drive 8 goes forwards
      M569 P9 S1 ; Physical drive 9 goes forwards
      M584 X5 Y6 Z0:1:2:3 E4:7:8:9 ; Apply custom drive mapping
      M671 X-230.5:-230.5:230.5:230.5 Y-286:286:286:-286 S2
      M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
      M92 X80.00 Y80.00 Z400.00 E420.00 ; Set steps per mm
      M566 X50 Y50 Z12.00 E120.00 ; Set maximum instantaneous speed changes (mm/min)
      M203 X40000.00 Y16000.00 Z180.00 E1200.00 ; Set maximum speeds (mm/min)
      M201 X2000.00 Y2000.00 Z20.00 E250.00 ; Set accelerations (mm/s^2)
      M906 X2000.00 Y2000.00 Z500.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M84 S30 ; Set idle timeout

      ; Axis Limits
      M208 X-215.5 Y-215.5 Z0 S1 ; Set axis minima
      M208 X 215.5 Y 215.5 Z500 S0 ; Set axis maxima

      ; Endstops
      M574 X1 S0 P"xstop" ; X min active low endstop switch
      M574 Y1 S0 P"ystop" ; Y min active low endstop switch

      ; Z-Probe
      M574 Z1 S2 ; Set endstops controlled by probe
      M558 P9 C"^zprobe.in" H5 F120 T6000 ; BLTouch connected to Z probe IN pin
      M950 S1 C"!duex.pwm5" ; create servo/gpio 0 on heater 3 pin on expansion
      G31 P500 X-35 Y0 Z1.5 ; Set Z probe trigger value, offset and trigger height

      ; Heaters
      M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 R4700
      M950 H0 C"!bedheat" T0 ; Heated Bed Internal Temp Sensor (Activ)
      M308 S1 P"e0_temp" Y"thermistor" T100000 B4138 R4700
      M950 H1 C"!e0heat" T1 ; Hotend 1
      M308 S2 P"e1_temp" Y"thermistor" T100000 B4138 R4700
      M950 H2 C"!e1heat" T2 ; Hotend 2
      M308 S3 P"e2_temp" Y"thermistor" T100000 B4138 R4700
      M950 H3 C"!duex.e2heat" T3 ; Hotend 3
      M308 S4 P"e3_temp" Y"thermistor" T100000 B4138 R4700
      M950 H4 C"!duex.e3heat" T4 ; Hotend 4
      M308 S5 P"e4_temp" Y"thermistor" T100000 B4138 R4700
      M950 H5 C"e6heat" T5 ; Heated Bed Edge Temp Sensor (Dummy)

      ; Fans
      M950 F2 C"!Fan0"
      M950 F3 C"!Fan1"

      ; Tools
      M563 P0 D0 H2 ; Define tool 0
      G10 P0 X-10 Y+10 Z0 ; Set tool 0 axis offsets
      G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
      M563 P1 D1 H3 ; Define tool 1
      G10 P1 X-10 Y-10 Z0 ; Set tool 0 axis offsets
      G10 P1 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
      M563 P2 D2 H4 ; Define tool 2
      G10 P2 X10 Y-10 Z0 ; Set tool 0 axis offsets
      G10 P2 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
      M563 P3 D3 H5 ; Define tool 3
      G10 P3 X10 Y10 Z0 ; Set tool 0 axis offsets
      G10 P3 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

      ; Automatic power saving
      M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss

      ; Custom settings are not configured

      ; Miscellaneous
      T0 ; Select first tool

      Phaedruxundefined 1 Reply Last reply Reply Quote 0
      • jay_s_ukundefined
        jay_s_uk
        last edited by

        If they're on from start up then the mosfet has failed due to more than likely a short in the wiring.
        Any pictures of the melted hot end?

        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

        Killernoyundefined 1 Reply Last reply Reply Quote 0
        • Phaedruxundefined
          Phaedrux Moderator
          last edited by

          Which board? Firmware?

          Killernoyundefined 1 Reply Last reply Reply Quote 0
          • Killernoyundefined
            Killernoy @jay_s_uk
            last edited by

            @jay_s_uk it is disassembled right now but the Heater blocks are melted the ´last temp i saw before shut down were around 650 C

            1 Reply Last reply Reply Quote 0
            • Killernoyundefined
              Killernoy @Phaedrux
              last edited by

              @Phaedrux Duet2 Wifi with duex5 and RRF3

              Phaedruxundefined 1 Reply Last reply Reply Quote 0
              • Killernoyundefined
                Killernoy
                last edited by Killernoy

                IMG_20191217_163930.jpg
                One of the Heatblocks the thermistor is still in it but I had to rip the cable of because plastic was molten around it

                1 Reply Last reply Reply Quote 0
                • Phaedruxundefined
                  Phaedrux Moderator @Killernoy
                  last edited by

                  @Killernoy said in why did my Printer melt?:

                  RRF3

                  which version specifically?

                  1 Reply Last reply Reply Quote 0
                  • Phaedruxundefined
                    Phaedrux Moderator @Killernoy
                    last edited by

                    @Killernoy said in why did my Printer melt?:

                    every heater output is set to 100% at startup?

                    Every heater was on full power at startup?

                    Killernoyundefined 3 Replies Last reply Reply Quote 0
                    • Killernoyundefined
                      Killernoy @Phaedrux
                      last edited by

                      This post is deleted!
                      1 Reply Last reply Reply Quote 0
                      • Killernoyundefined
                        Killernoy @Phaedrux
                        last edited by

                        @Phaedrux said in why did my Printer melt?:

                        @Killernoy said in why did my Printer melt?:

                        every heater output is set to 100% at startup?

                        Every heater was on full power at startup?

                        Yes

                        Killernoyundefined 1 Reply Last reply Reply Quote 0
                        • Killernoyundefined
                          Killernoy @Phaedrux
                          last edited by

                          @Phaedrux said in why did my Printer melt?:

                          @Killernoy said in why did my Printer melt?:

                          every heater output is set to 100% at startup?

                          Every heater was on full power at startup?

                          3.0 beta12 2019-11-02b1

                          1 Reply Last reply Reply Quote 0
                          • Phaedruxundefined
                            Phaedrux Moderator
                            last edited by

                            Is it still doing it? Can you get an M122 diagnostic report from it?

                            Killernoyundefined 1 Reply Last reply Reply Quote 0
                            • Killernoyundefined
                              Killernoy @Killernoy
                              last edited by

                              @Killernoy said in why did my Printer melt?:

                              @Phaedrux said in why did my Printer melt?:

                              @Killernoy said in why did my Printer melt?:

                              every heater output is set to 100% at startup?

                              Every heater was on full power at startup?

                              Yes

                              correction not every just Bed and E2 E3 and E6

                              Killernoyundefined 1 Reply Last reply Reply Quote 0
                              • Killernoyundefined
                                Killernoy @Phaedrux
                                last edited by Killernoy

                                @Phaedrux said in why did my Printer melt?:

                                Is it still doing it? Can you get an M122 diagnostic report from it?

                                Yes it is

                                === Diagnostics ===
                                RepRapFirmware for Duet 2 WiFi/Ethernet version 3.0beta12 running on Duet WiFi 1.02 or later + DueX5
                                Board ID: 08DGM-95BLL-N65TJ-6J9F4-3S46L-1JWVL
                                Used output buffers: 1 of 24 (1 max)
                                === RTOS ===
                                Static ram: 25812
                                Dynamic ram: 99608 of which 0 recycled
                                Exception stack ram used: 256
                                Never used ram: 5396
                                Tasks: NETWORK(ready,1448) HEAT(suspended,920) DUEX(suspended,160) MAIN(running,3652) IDLE(ready,200)
                                Owned mutexes:
                                === Platform ===
                                Last reset 00:00:43 ago, cause: power up
                                Last software reset at 2019-12-17 16:50, reason: Unknown, spinning module Webserver, available RAM 4992 bytes (slot 2)
                                Software reset code 0x40b2 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f80f BFAR 0xe000ed38 SP 0x20001ec4 Task 0x5754454e
                                Stack: 0044f28f 00450e22 81000000 00000000 40740000 3edb6db7 b7b4d800 3331bb4c 40000000 3f317200 b5ddea0e 388aa908 41e2ece8 00000000 00000000 00000000 00000000 00000000 40400000 80000010 00449277 00000001 004067db
                                Error status: 0
                                Free file entries: 10
                                SD card 0 detected, interface speed: 20.0MBytes/sec
                                SD card longest block write time: 0.0ms, max retries 0
                                MCU temperature: min 24.9, current 29.1, max 29.4
                                Supply voltage: min 0.3, current 0.5, max 0.6, under voltage events: 0, over voltage events: 0, power good: no
                                Driver 0: ok, SG min/max not available
                                Driver 1: ok, SG min/max not available
                                Driver 2: ok, SG min/max not available
                                Driver 3: ok, SG min/max not available
                                Driver 4: ok, SG min/max not available
                                Driver 5: ok, SG min/max not available
                                Driver 6: ok, SG min/max not available
                                Driver 7: ok, SG min/max not available
                                Driver 8: ok, SG min/max not available
                                Driver 9: ok, SG min/max not available
                                Date/time: 1970-01-01 00:00:00
                                Cache data hit count 132068223
                                Slowest loop: 0.76ms; fastest: 0.07ms
                                I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
                                === Move ===
                                Hiccups: 0, FreeDm: 169, MinFreeDm: 169, MaxWait: 0ms
                                Bed compensation in use: none, comp offset 0.000
                                === MainDDARing ===
                                Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
                                === AuxDDARing ===
                                Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
                                === Heat ===
                                Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
                                === GCodes ===
                                Segments left: 0
                                Stack records: 1 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 idle in state(s) 0
                                serial is ready with "m122" 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: 15.55ms; fastest: 0.00ms
                                Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
                                HTTP sessions: 0 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 1.23
                                  WiFi MAC address 2c:3a:e8:0a:f2:1b
                                  WiFi Vcc 3.41, reset reason Turned on by main processor
                                  WiFi flash size 4194304, free heap 26096
                                  WiFi IP address 192.168.178.77
                                  WiFi signal strength -72dBm, reconnections 0, sleep mode modem
                                  Socket states: 0 0 0 0 0 0 0 0
                                  ok
                                1 Reply Last reply Reply Quote 0
                                • dc42undefined
                                  dc42 administrators
                                  last edited by dc42

                                  I'm sorry to hear of your misfortune. The only time I have heard of this happening before was when there was over-voltage on the +5V rail (due to a short to +12V or +24V) which resulted in failure of the mosfet driver chip. It's labelled U11 and it's close to the reset button and extruder heater mosfets. Does it look damaged?

                                  Are you powering anything external to the Duet from the +5V supply? What fan voltage are you using?

                                  Duet WiFi hardware designer and firmware engineer
                                  Please do not ask me for Duet support via PM or email, use the forum
                                  http://www.escher3d.com, https://miscsolutions.wordpress.com

                                  Killernoyundefined 1 Reply Last reply Reply Quote 0
                                  • Killernoyundefined
                                    Killernoy @dc42
                                    last edited by Killernoy

                                    @dc42 said in why did my Printer melt?:

                                    I'm sorry to hear of your misfortune. The only time I have heard of this happening before was when there was over-voltage on the +5V rail (due to a short to +12V or +24V) which resulted in failure of the mosfet driver chip. It's labelled U11 and it's close to the reset button and extruder heater mosfets. Does it look damaged?

                                    No it does not look damaged to me, but take a look for your self

                                    IMG_20191217_173121.jpg

                                    Are you powering anything external to the Duet from the +5V supply?

                                    The fans

                                    What fan voltage are you using?

                                    5V

                                    1 Reply Last reply Reply Quote 0
                                    • jay_s_ukundefined
                                      jay_s_uk
                                      last edited by

                                      U11 looks damaged to me. it has a hole in it

                                      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

                                      Killernoyundefined 1 Reply Last reply Reply Quote 0
                                      • Killernoyundefined
                                        Killernoy @jay_s_uk
                                        last edited by

                                        @jay_s_uk said in why did my Printer melt?:

                                        U11 looks damaged to me. it has a hole in it

                                        I don´t know if I´m right but to me it looks like a Texas Instruments LogoIMG_20191217_174953[1].jpg

                                        1 Reply Last reply Reply Quote 0
                                        • dc42undefined
                                          dc42 administrators
                                          last edited by

                                          U11 looks OK to me in that photo, but the symptom suggests to me that it has failed.

                                          As you are running 5V fans. I suggest you check very carefully that there is no possibility of a short between the fan wires and the hot end heater wires. We've seen users damage Duets before because of such shorts. That's why I argued (successfully) for us not to provide a jumper to select 5V fans on Duet 3 (OTOH, Duet 3 has a 12V regulator on board so that 12V fans can be used).

                                          Some fans and other devices (especially servos) pump power into the supply rail when they turn off, although in the case of small brushless fans, the smoothing capacitors on the supply rail should take care of that without excessive over-voltage.

                                          Duet WiFi hardware designer and firmware engineer
                                          Please do not ask me for Duet support via PM or email, use the forum
                                          http://www.escher3d.com, https://miscsolutions.wordpress.com

                                          Killernoyundefined 1 Reply Last reply Reply Quote 0
                                          • Phaedruxundefined
                                            Phaedrux Moderator
                                            last edited by

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