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    Unable to configure bed heater

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    Tuning and tweaking
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    • engikeneerundefined
      engikeneer @Weevil
      last edited by

      @weevil post your full config and config override using the </> code tags.
      Looks like it's not reading the tuned parameters (1.7deg/s is the default for a heater)

      E3D TC with D3Mini and Toolboards.
      Home-built CoreXY, Duet Wifi, Chimera direct drive, 2x BMG, 300x300x300 build volume
      i3 clone with a bunch of mods

      Weevilundefined 1 Reply Last reply Reply Quote 0
      • Weevilundefined
        Weevil @engikeneer
        last edited by

        @engikeneer You just gave me an idea. I'll try editing the M307 code.

        Weevilundefined 1 Reply Last reply Reply Quote 0
        • Weevilundefined
          Weevil @Weevil
          last edited by

          @engikeneer EDiting the code directly didn't work either. It's still complaining.

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

            post your full config and config override

            Z-Bot CoreXY Build | Thingiverse Profile

            Weevilundefined 1 Reply Last reply Reply Quote 0
            • Weevilundefined
              Weevil @Phaedrux
              last edited by Weevil

              @phaedrux config:

              ; Configuration file for Duet 3 (firmware version 3)
              ; executed by the firmware on start-up
              ;
              ; generated by RepRapFirmware Configuration Tool v2.1.8 on Thu Feb 20 2020 16:55:51 GMT-0800 (Pacific Standard Time)

              ; General preferences
              G90
              M83
              M550 P"MYTH3D"

              M667 S1
              M575 P1 B57600 S1

              ; Networking
              M552 P192.168.1.19 S1
              M553 P255.255.255.0
              M554 192.168.1.1
              M586 P1 S1
              M586 P2 S1
              M552 S1

              ; Drives
              M569 P0.0 S1
              M569 P0.1 S0
              M569 P0.2 S1
              M569 P0.5 S1
              M569 P0.3 S1
              M569 P0.4 S1
              M584 X0.0 Y0.1 Z0.2:0.3:0.4 E0.5
              M350 X16 Y16 Z16 E16 I1
              M92 X80.00 Y80.00 Z400.00 E400.00
              M566 X900.00 Y900.00 Z12.00 E120.00
              M203 X6000.00 Y6000.00 Z180.00 E1200.00
              M201 X500.00 Y500.00 Z20.00 E250.00
              M906 X800 Y800 Z800 E800
              M84 S30
              M671 X-15:150:310 Y50:310:150 1S0.5

              ; Axis Limits
              M208 X0 Y0 Z0 S1
              M208 X300 Y300 Z500 S0

              ; Endstops
              M574 X2 S1 P"io5.in"
              M574 Y1 S1 P"io2.in"

              ; Z-Probe
              M950 S0 C"io7.out"
              M558 P9 C"io7.in" H5 F120 T6000
              G31 P25 X-38 Y0 Z1.05
              M557 X15:227 Y5:210 S50

              ; Heaters
              M308 S0 P"temp1" Y"thermistor" T100000 B4138
              M950 H0 C"out2" T0
              M307 H0 B1 S1.00
              M140 H0
              M143 H0 S100
              M308 S0 P"temp0" Y"thermistor" T100000 B4138
              M950 H1 C"out1" T0
              M143 H1 S280

              ; Fans
              M950 F1 C"out7" Q500
              M106 P1 S1 H T45
              M950 F0 C"out8" Q500
              M106 P0 S255

              ; Custom settings are not defined

              ; Miscellaneous
              M501
              M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000"

              ; Tools
              M563 P0 S"MYTHprint" D0 H1 F0
              M563 P0 D0 H1 F0
              G10 P0 X0 Y0 Z0
              G10 P0 R0 S0
              T0

              Config override

              ; config-override.g file generated in response to M500 at 2021-05-23 11:36
              ; This is a system-generated file - do not edit
              ; Heater model parameters
              M307 H0 R0.299 C620.600:620.600 D1.28 S1.00 V22.7 B0 I0
              M307 H1 R1.970 C184.600:184.600 D5.04 S1.00 V23.9 B0 I0
              ; Workplace coordinates
              G10 L2 P1 X0.00 Y0.00 Z0.00
              G10 L2 P2 X0.00 Y0.00 Z0.00
              G10 L2 P3 X0.00 Y0.00 Z0.00
              G10 L2 P4 X0.00 Y0.00 Z0.00
              G10 L2 P5 X0.00 Y0.00 Z0.00
              G10 L2 P6 X0.00 Y0.00 Z0.00
              G10 L2 P7 X0.00 Y0.00 Z0.00
              G10 L2 P8 X0.00 Y0.00 Z0.00
              G10 L2 P9 X0.00 Y0.00 Z0.00

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              • Phaedruxundefined
                Phaedrux Moderator
                last edited by

                I would suggest deleting the config-override.g file and then re-run the heater tuning with M303 and when it completes use M500 again to save it, which should create a fresh config-override.g file.

                Z-Bot CoreXY Build | Thingiverse Profile

                Weevilundefined 3 Replies Last reply Reply Quote 0
                • Weevilundefined
                  Weevil @Phaedrux
                  last edited by

                  @phaedrux I'll give it a shot.

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                  • Weevilundefined
                    Weevil @Phaedrux
                    last edited by

                    @phaedrux That did not work. I got the following message:

                    Warning: heater behaviour was not consistent during tuning
                    Auto tuning heater 0 completed after 4 idle and 25 tuning cycles in 3679 seconds. This heater needs the following M307 command:
                    M307 H0 B0 R0.317 C276.8 D1.57 S1.00 V22.7
                    Send M500 to save this command in config-override.g

                    As with all tests, the beep alarm would go off each time the bed heats up. I went ahead and saved the code with M500 but the issue remains. I would be happy if I could just disable the alert. It appears to function fine.

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                    • Weevilundefined
                      Weevil @Phaedrux
                      last edited by

                      @phaedrux I think the issue is the board is treating the bed heater like a nozzle heater. It is running tests with the fan on and fan off.

                      These codes:
                      M308 S0 P"temp1" Y"thermistor" T100000 B4138
                      M308 S0 P"temp0" Y"thermistor" T100000 B4138

                      They look identical. Perhaps there is a code for bed heaters.

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

                        @weevil said in Unable to configure bed heater:

                        I think the issue is the board is treating the bed heater like a nozzle heater. It is running tests with the fan on and fan off.

                        What M303 command are you using to tune the bed?

                        M303 T# will tune the heater as a tool with the fan
                        M303 H# will tune the heater as a heater without the fan

                        https://duet3d.dozuki.com/Wiki/Gcode#Section_M303_Run_heater_tuning

                        Z-Bot CoreXY Build | Thingiverse Profile

                        Weevilundefined 2 Replies Last reply Reply Quote 0
                        • Weevilundefined
                          Weevil @Phaedrux
                          last edited by

                          @phaedrux I thought I was using H. I'll double-check when I get home. But the M308 command, shouldn't the T100000 B4138 be different for bed?

                          engikeneerundefined 1 Reply Last reply Reply Quote 0
                          • engikeneerundefined
                            engikeneer @Weevil
                            last edited by

                            @weevil depends what thermistor you have. B4138 is the default the config tool uses so is almost certainly not right for your setup. You probably should find out the correct values for your thermistor (for both hotend and bed).
                            Having said that, it should only affect how accurate the measured temperature is (and probably won't make much difference at lower temperatures used by the bed).

                            E3D TC with D3Mini and Toolboards.
                            Home-built CoreXY, Duet Wifi, Chimera direct drive, 2x BMG, 300x300x300 build volume
                            i3 clone with a bunch of mods

                            Weevilundefined 1 Reply Last reply Reply Quote 1
                            • Weevilundefined
                              Weevil @engikeneer
                              last edited by Weevil

                              @engikeneer The thermistor for my Keenovo pad is an NTC100K if that helps.
                              Also note, the heated bed size is 300x300.

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

                                @weevil said in Unable to configure bed heater:

                                The thermistor for my Keenovo pad is an NTC100K if that helps.

                                Chances are the B value should be B3950 in that case.

                                Z-Bot CoreXY Build | Thingiverse Profile

                                Weevilundefined 1 Reply Last reply Reply Quote 1
                                • Weevilundefined
                                  Weevil @Phaedrux
                                  last edited by

                                  @phaedrux Thanks, I'll try that (fingers crossed).

                                  1 Reply Last reply Reply Quote 0
                                  • Weevilundefined
                                    Weevil @Phaedrux
                                    last edited by Weevil

                                    @phaedrux M303 T# produces this error:
                                    M303 H# tests with the fan
                                    M303 T1 S60
                                    Error: M303: tool 1 not found

                                    theruttmeisterundefined 1 Reply Last reply Reply Quote 0
                                    • theruttmeisterundefined
                                      theruttmeister @Weevil
                                      last edited by

                                      @weevil said in Unable to configure bed heater:

                                      @phaedrux M303 T# produces this error:
                                      M303 H# tests with the fan
                                      M303 T1 S60
                                      Error: M303: tool 1 not found

                                      Not surprising...

                                      M563 P0 S"MYTHprint" D0 H1 F0
                                      M563 P0 D0 H1 F0

                                      You have configured Tool 0. There is no Tool 1.

                                      Although I'm not sure why you are getting the fan running when the heater is.

                                      Also you have a random H without a value:

                                      M106 P1 S1 H T45

                                      Doubt it's causing the problem, but can't hurt to fix.

                                      Isolate, substitute, verify.

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

                                        @weevil said in Unable to configure bed heater:

                                        M106 P0 S255

                                        This may need to be M106 P0 S1 H-1 to work correctly as a part cooling fan. That might have something to do with it.

                                        Z-Bot CoreXY Build | Thingiverse Profile

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                                        • Weevilundefined
                                          Weevil @theruttmeister
                                          last edited by

                                          @theruttmeister My bad, for some reason I was thinking T as temp probe, not tool. Using the code M303 T0 S60 goes to the nozzle. I need this to test the bed heater. I'm not sure what code I am missing.

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                                          • Phaedruxundefined
                                            Phaedrux Moderator
                                            last edited by

                                            For the tool you use M303 T0 S### (or M303 H1 S###) and for the bed heater you use M303 H0 S##.

                                            The tool tuning is intended to allow the algorithm to use the part cooling fan during the tuning process so that it can compensate for any fan cooling effect. It's not supposed to do that when tuning the bed though, so that may be a bug. Or maybe it's taking into account the fan effect for the bed heater now as well.

                                            Z-Bot CoreXY Build | Thingiverse Profile

                                            Weevilundefined 2 Replies Last reply Reply Quote 0
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