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    one Z stepper getting very hot, other fine?

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    • alanknightundefined
      alanknight
      last edited by

      just turned it on, not printing

      PMM913
      Motor current % of normal - X:100, Y:100, Z:100, E:100

      PMM906
      Motor current (mA) - X:600, Y:600, Z:750, E:1600, idle factor 30%

      started printing, numbers are all the same

      I'm clutching at straws... but is there a chance one stepper isn't dropping back to idle power levels when it's supposed to?

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      • alanknightundefined
        alanknight @Veti
        last edited by

        @veti said in one Z stepper getting very hot, other fine?:

        @alanknight said in one Z stepper getting very hot, other fine?:

        M584 X0 Y1 Z2:3 E4.5

        E4.5 is wrong you want E4:5

        my bad, I read that wrong, M584 is for z axis only, fixed it, I'll let it cool and set it printing again

        thanks guys 🙂

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        • alanknightundefined
          alanknight
          last edited by

          printing now again... it's hot as hell again 😞

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            Does anything show in M122?

            I see you're running a pretty old firmware version. I don't think there were any bugs like this, but you never know. You could try upgrading to 2.02 and seeing if it makes any difference.

            Just to clarify, you fixed the error Veti pointed out, does M906 and M913 report both Z motors now? Just want to verify that your extruder is the one getting 1600 and not the second Z motor.

            Z-Bot CoreXY Build | Thingiverse Profile

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            • alanknightundefined
              alanknight
              last edited by alanknight

              M112 runs an emergency stop?

              M913
              Motor current % of normal - X:100, Y:100, Z:100, E: 100:100

              M906
              Motor current (mA) - X:600, Y:600, Z:750, E:1600:1600, idle factor 30%

              are my extruder and Z axis somehow mixed up? the printer prints fine, just that one z motor getting hot

              (I added a space after E: to avoid the smilie)

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              • Phaedruxundefined
                Phaedrux Moderator
                last edited by

                M112 is emergency stop.

                M122 is diagnostic report.

                Painfully close, I know.

                Z-Bot CoreXY Build | Thingiverse Profile

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                • alanknightundefined
                  alanknight
                  last edited by alanknight

                  sorry my bad

                  M122
                  === Diagnostics ===
                  Used output buffers: 3 of 32 (11 max)
                  === Platform ===
                  RepRapFirmware for Duet 2 WiFi/Ethernet version 1.21 running on Duet WiFi 1.02 or later
                  Board ID: 08DGM-956GU-DJMSN-6J9F4-3SD6Q-1VRRG
                  Static ram used: 16152
                  Dynamic ram used: 100408
                  Recycled dynamic ram: 2224
                  Stack ram used: 1224 current, 4512 maximum
                  Never used ram: 7776
                  Last reset 00:14:34 ago, cause: software
                  Last software reset at 2019-05-02 22:53, reason: User, spinning module GCodes, available RAM 7776 bytes (slot 0)
                  Software reset code 0x0003 HFSR 0x00000000, CFSR 0x00000000, ICSR 0x0441f000, BFAR 0xe000ed38, SP 0xffffffff
                  Error status: 0
                  Free file entries: 10
                  SD card 0 detected, interface speed: 20.0MBytes/sec
                  SD card longest block write time: 0.0ms
                  MCU temperature: min 34.5, current 35.7, max 35.9
                  Supply voltage: min 12.3, current 12.7, max 13.1, under voltage events: 0, over voltage events: 0
                  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: standstill, SG min/max not available
                  Driver 4: standstill, SG min/max not available
                  Date/time: 2019-05-02 23:08:15
                  Slowest main loop (seconds): 0.014124; fastest: 0.000046
                  === Move ===
                  MaxReps: 0, StepErrors: 0, LaErrors: 0, FreeDm: 240, MinFreeDm 240, MaxWait: 0ms, Underruns: 0, 0
                  Scheduled moves: 0, completed moves: 0
                  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 = 0.0
                  === 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 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 ===
                  Responder states: HTTP(1) 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 1.21RC4(08b3)
                    WiFi MAC address 5c:cf:7f:76:61:21
                    WiFi Vcc 3.31, reset reason Turned on by main processor
                    WiFi flash size 4194304, free heap 17336
                    WiFi IP address 192.168.1.239
                    WiFi signal strength -50dBm, reconnections 0, sleep mode modem
                    Socket states: 2 0 0 0 0 0 0 0
                    === Expansion ===

                  should I updates? - do I lose my settings if I do?

                  it used to print fine... so I'm assuming I accidentally broke something, but I'm lost

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                  • alanknightundefined
                    alanknight
                    last edited by alanknight

                    updated

                    Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
                    Firmware Electronics: Duet WiFi 1.02 or later
                    Firmware Version: 2.02(RTOS) (2018-12-24b1)
                    WiFi Server Version: 1.22
                    Web Interface Version: 1.22.6

                    I've added a fan to that stepper for tonight, printer is at work, it's 11.30pm, i need to go home! butr also need some things printing asap so I'll leave it going with then fan 🙂

                    I'll check back tomorrow, thanks for the help

                    Alan 🙂

                    EDIT: ran these again before I go

                    11:28:37 PMM906
                    Motor current (mA) - X:600, Y:600, Z:750, E:1600:0, idle factor 30%
                    11:28:30 PMM913
                    Motor current % of normal - X:100, Y:100, Z:100, E💯100

                    that stepper is still heating up, not sure if it's relevant but it's the one plugged into the driver, not the one plugged into the standard driver

                    EDIT3: 40mm fan is screaming but stepper is getting hotter than I expected... I'll hut the printer down, don't want it to overheat while I'm gone

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                    • Phaedruxundefined
                      Phaedrux Moderator @alanknight
                      last edited by Phaedrux

                      @alanknight said in one Z stepper getting very hot, other fine?:

                      ; Motor remapping for dual Z
                      M584 X0 Y1 Z2:3 E4.5

                      So I think this was the root of your problem as Veti pointed out. Part of the problem was the period instead of colon, but there's more to it that just that. The command must come earlier in config.g than where you have it.

                      https://duet3d.dozuki.com/Wiki/Gcode#Section_M584_Set_drive_mapping

                      Order dependence

                      M584 must come earlier in config.g than any M350 and M906 commands. If it creates new axes, it must also be earlier than any M92, M201, M203, M208, M350, M566, M574 , M667 and M669 commands.
                      Example

                      M584 X0 Y1 Z2:3 E4:5:6 ; Driver 0 controls the X motor, 1 controls Y, 2 and 3 control Z motors, 4 5 and 6 control E motors
                      VERY IMPORTANT! Assigning a drive using M584 does not remove its old assignment. Therefore, if you assign a drive that defaults to being an extruder drive, you should also assign the extruder drives explicitly as in the above example. Failure to do so may result in unexpected behaviour.

                      You need to move your M584 command up above the M350 command. Sorry. I should have caught that sooner.

                      Z-Bot CoreXY Build | Thingiverse Profile

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                      • alanknightundefined
                        alanknight
                        last edited by alanknight

                        no need to say sorry, you're doing me a favour spending your time helping me, I owe you one 🙂

                        edited config file to this...

                        M569 P0 S0 ; X Drive 0 goes backwards
                        M569 P1 S0 ; Y Drive 1 goes backwards
                        M569 P2 S1 ; Z1 Drive 2 goes forwards
                        M569 P3 S1 ; Z2 Drive 3 goes forwards
                        M569 P4 S0 ; extr Drive 4 goes backwards

                        M584 X0 Y1 Z2:3 E4:5 ; Motor remapping for dual Z

                        M350 X16 Y16 Z16:16 E16 I1 ; Configure microstepping with interpolation
                        M92 X80 Y80 Z2555:2555 E93 ; Set steps per mm
                        M566 X900 Y900 Z6:6 E500 ; Set maximum instantaneous speed changes (mm/min)
                        M203 X6000 Y6000 Z90:90 E3000 ; Set maximum speeds (mm/min)
                        M201 X1000 Y1000 Z50:50 E500 ; Set accelerations (mm/s^2)
                        M906 X600 Y600 Z750:750 E1600 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 X200 Y180 Z200 S0

                        and

                        AMM906 Motor current (mA) - X:600, Y:600, Z:750, E:1600:1600, idle factor 30%
                        AMM913 Motor current % of normal - X:100, Y:100, Z:100, E💯100

                        I'll give it a go

                        thanks for all the help

                        🙂

                        EDIT: it's about an hour into a print, all steppers nice and cool, thanks again for the help 🙂

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                        • Phaedruxundefined
                          Phaedrux Moderator
                          last edited by

                          Glad that's sorted out.

                          Z-Bot CoreXY Build | Thingiverse Profile

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                          • dc42undefined
                            dc42 administrators
                            last edited by dc42

                            What was happening is that when the M906 command was executed, the motor connected to E1 output was configured as an extruder, so it got 1600mA. That's why we say that M584 must come before M906. Similarly for M350.

                            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

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                            • alanknightundefined
                              alanknight
                              last edited by

                              no more hot motors... but I think I've messed something else up, the auto bed leveling doesn't work anymore (or maybe updating firmware broke something?)

                              to be fair, I was still fine tuning it, I think my bed has sagged a little in the middle, I'm using a buildtac bed (the magnetic one you can lift the tray off) which might throw it off a little too

                              when I try to run auto bed leveling, or mesh grid leveling the Z comes down, hits the bed and doesn't stop till the motors stall

                              it doesn't move X/Y at all, here's my config file

                              ; Configuration file for Duet WiFi (firmware version 1.20 or newer)
                              ; executed by the firmware on start-up
                              ;
                              ; generated by RepRapFirmware Configuration Tool on Wed Jun 13 2018 17:00:33 GMT+0100 (British Summer Time)

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

                              ; Network
                              M550 PMy printer ; Set machine name
                              M552 S1 ; Enable network
                              M587 S"tripe" P"m580umuu" I192.168.1.89 J192.168.1.254 K255.255.255.0 ; Configure access point and IP addresses. You can delete this line once connected
                              M586 P0 S1 ; Enable HTTP
                              M586 P1 S0 ; Disable FTP
                              M586 P2 S0 ; Disable Telnet

                              ; Drives

                              ; Define Drives
                              ; Physical Drive connection

                              M569 P0 S0 ; X Drive 0 goes backwards
                              M569 P1 S0 ; Y Drive 1 goes backwards
                              M569 P2 S1 ; Z1 Drive 2 goes forwards
                              M569 P3 S1 ; Z2 Drive 3 goes forwards
                              M569 P4 S0 ; extr Drive 4 goes backwards

                              M584 X0 Y1 Z2:3 E4:5 ; Motor remapping for dual Z

                              M350 X16 Y16 Z16:16 E16 I1 ; Configure microstepping with interpolation
                              M92 X80 Y80 Z2555:2555 E93 ; Set steps per mm
                              M566 X900 Y900 Z6:6 E500 ; Set maximum instantaneous speed changes (mm/min)
                              M203 X6000 Y6000 Z90:90 E3000 ; Set maximum speeds (mm/min)
                              M201 X1000 Y1000 Z50:50 E500 ; Set accelerations (mm/s^2)
                              M906 X600 Y600 Z750:750 E1600 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 X200 Y200 Z200 S0 ; Set axis maxima

                              ; Endstops
                              M574 X1 Y1 Z1 S0 ; Set active low endstops

                              ;Z-Probe
                              M558 P1 H5 F120 T6000 ; Set Z probe type to unmodulated and the dive height + speeds
                              G31 P400 X40 Y0 Z-4 ; Set Z probe trigger value, offset and trigger height
                              M557 X40:160 Y40:160 S20 ; Define mesh grid

                              ; Heaters
                              M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
                              M143 H0 S120 ; Set temperature limit for heater 0 to 120C
                              M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1
                              M143 H1 S320 ; Set temperature limit for heater 1 to 280C

                              ; Fans
                              M106 P0 S0.85 I0 F500 H1 T45 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
                              M106 P1 S0.5 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
                              M106 P2 S0.5 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

                              ; Tools
                              M563 P0 D0 H1 ; 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

                              ; Automatic saving after power loss is not enabled

                              ; Custom settings are not configured


                              and bed.g

                              ; bed.g
                              ; called to perform automatic bed compensation via G32
                              ;
                              ; generated by RepRapFirmware Configuration Tool on Wed Jun 13 2018 17:00:32 GMT+0100 (British Summer Time)

                              M561 ; clear any bed transform
                              ; Probe the bed at 5 points
                              G30 P0 X30 Y30 H0 Z-99999
                              G30 P1 X30 Y185 H0 Z-99999
                              G30 P2 X185 Y185 H0 Z-99999
                              G30 P3 X185 Y30 H0 Z-99999
                              G30 P4 X100 Y100 H0 Z-99999 S


                              I'm looking again and again, googling etc. but can't figure it out

                              sorry to keep pestering you guys with questions!

                              Alan 😮

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                              • dc42undefined
                                dc42 administrators
                                last edited by

                                @alanknight said in one Z stepper getting very hot, other fine?:

                                M558 P1 H5 F120 T6000 ; Set Z probe type to unmodulated and the dive height + speeds
                                G31 P400 X40 Y0 Z-4 ; Set Z probe trigger value, offset and trigger height

                                What type of Z probe are you using? The Z-4 parameter in your G31 line says that it triggers when the nozzle is 4mm below the bed, which surely isn't right. See https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe to calibrate the trigger height.

                                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

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                                • alanknightundefined
                                  alanknight
                                  last edited by alanknight

                                  IR probe, from the duet3d website

                                  I'll swap that -4 to a 4, that's probably my mistake!

                                  I fell on my head 3 years ago, left me with a bit of brain damage, I make silly mistakes like that and then can't see them no matter how much I look

                                  thanks again for the help, it's printing right now, I'll give it a try when it's finished

                                  Alan 🙂

                                  EDIT: it's still printing, watching it print the z probe reads 535 when it's over what it's printing

                                  I'm thinking that must be the perfect height? - it's reading the high of the last layer it's printing ontop of.... so I can set the z trigger to 535 and z height above nozzle to 0 ?

                                  EDIT: it's not just a Z problem, X moves too far left and crashes into the end stop too... it ignores the end stop and tires to power through

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                                  • alanknightundefined
                                    alanknight
                                    last edited by

                                    I fixed it...I had z probe offset at 40 when it should have been -40

                                    had to add some Y offset too

                                    thanks

                                    Alan 🙂

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