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    Sensorless homing problems

    Tuning and tweaking
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    • Amagatth
      Amagatth last edited by

      Hi all ,

      I have a core Xy printer and i meet a problem when i make my sensorless homing on X and Y , 50% of time the homing work fine but 50% other the printer make homing and remake it 50X, like if the printer read the homeX.g 50 time.

      Did anyone have an information about it ?

      config (1).g homex.g homey.g

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

        Firmware version? Duet board?

        Please share the results of sending M122 and M98 P"config.g" in the gcode console. Copy and paste the text into your post.

        Have you gone through the tuning process?
        https://duet3d.dozuki.com/Wiki/Stall_detection_and_sensorless_homing

        Z-Bot CoreXY Build | Thingiverse Profile

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

          @phaedrux sorry I forgot to say it's a duet 3 + raspberry I make the first origin y and it's work fine but if I make origine again it's repeat it xxx time

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          • Amagatth
            Amagatth @Phaedrux last edited by

            @phaedrux Hi

            This is my M122

            m122
            === Diagnostics ===
            RepRapFirmware for Duet 3 MB6HC version 3.1.1 running on Duet 3 MB6HC v1.01 or later (SBC mode)
            Board ID: 08DJM-9P63L-DJ3T8-6JTDG-3SJ6J-1B77A
            Used output buffers: 1 of 40 (10 max)
            === RTOS ===
            Static ram: 154604
            Dynamic ram: 162576 of which 68 recycled
            Exception stack ram used: 224
            Never used ram: 75744
            Tasks: ETHERNET(blocked,844) NETWORK(ready,1972) HEAT(blocked,820) CanReceiv(suspended,3820) CanSender(suspended,1488) CanClock(blocked,1436) TMC(blocked,204) MAIN(running,4952) IDLE(ready,76)
            Owned mutexes:
            === Platform ===
            Last reset 00:03:41 ago, cause: power up
            Last software reset at 2021-09-09 12:09, reason: User, spinning module LinuxInterface, available RAM 75348 bytes (slot 2)
            Software reset code 0x0010 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0444a000 BFAR 0x00000000 SP 0xffffffff Task MAIN
            Error status: 0
            MCU temperature: min 16.1, current 28.7, max 28.8
            Supply voltage: min 24.2, current 24.3, max 24.3, under voltage events: 0, over voltage events: 0, power good: yes
            12V rail voltage: min 12.1, current 12.2, max 12.2, under voltage events: 0
            Driver 0: standstill, reads 37770, writes 15 timeouts 0, SG min/max 0/0
            Driver 1: standstill, reads 37771, writes 15 timeouts 0, SG min/max 0/0
            Driver 2: standstill, reads 37775, writes 11 timeouts 0, SG min/max 0/0
            Driver 3: standstill, reads 37773, writes 14 timeouts 0, SG min/max 0/0
            Driver 4: standstill, reads 37773, writes 14 timeouts 0, SG min/max 0/0
            Driver 5: standstill, reads 37774, writes 14 timeouts 0, SG min/max 0/0
            Date/time: 2021-09-09 12:20:26
            Slowest loop: 4.50ms; fastest: 0.14ms
            === Storage ===
            Free file entries: 10
            SD card 0 not detected, interface speed: 37.5MBytes/sec
            SD card longest read time 0.0ms, write time 0.0ms, max retries 0
            === Move ===
            Hiccups: 0(0), FreeDm: 375, MinFreeDm: 375, 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 CDDA state: -1
            === AuxDDARing ===
            Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: -1
            === Heat ===
            Bed heaters = 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
            === GCodes ===
            Segments left: 0
            Movement lock held by null
            HTTP* is ready with "M122" 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 0, running macro
            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
            Code queue is empty.
            === Network ===
            Slowest loop: 1.48ms; fastest: 0.01ms
            Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions Telnet(0), 0 sessions
            HTTP sessions: 0 of 8

            • Ethernet -
              State: establishingLink
              Error counts: 0 0 0 0 0
              Socket states: 0 0 0 0 0 0 0 0
              === CAN ===
              Messages sent 790, longest wait 0ms for type 0
              === Linux interface ===
              State: 0, failed transfers: 1
              Last transfer: 19ms ago
              RX/TX seq numbers: 7877/7878
              SPI underruns 1, overruns 1
              Number of disconnects: 0
              Buffer RX/TX: 0/0-0
              === Duet Control Server ===
              Duet Control Server v3.3.0
              Trigger:
              Buffered code: T0 ; select first tool
              ==> 24 bytes
              Executing macro config.g, started by system

            Next stack level
            Pending code: M905 P"2021-09-10" S"08:40:23"
            Code buffer space: 4096
            Configured SPI speed: 8000000Hz
            Full transfers per second: 0.11, max wait times: 8.3ms/0.0ms
            Codes per second: 0.00
            Maximum length of RX/TX data transfers: 3220/796

            M98 P"config.g" dont give any response ...

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

              @amagatth said in Sensorless homing problems:

              RepRapFirmware for Duet 3 MB6HC version 3.1.1 running on Duet 3 MB6HC v1.01 or later (SBC mode)

              Please use sudo apt update and sudo apt upgrade on the pi terminal to update your firmwares, etc to 3.3

              Z-Bot CoreXY Build | Thingiverse Profile

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