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    Ender 3 Maestro BlTouch not homing

    Scheduled Pinned Locked Moved Solved
    Duet Hardware and wiring
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    • Phaedruxundefined
      Phaedrux Moderator
      last edited by

      Can you post your homeall as well?

      Are you able to control the pin of the BLTouch with M401 and M402?

      Can you also share the results of M122 and M98 P"config.g"?

      Can you try this dynamic test described here: https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe#Section_Dynamic_test

      Z-Bot CoreXY Build | Thingiverse Profile

      scarwearundefined 1 Reply Last reply Reply Quote 0
      • scarwearundefined
        scarwear @Phaedrux
        last edited by

        @phaedrux Thank you for the quick response.
        M401 and M402 do nothing.
        The BL touch flashes red (the whole body).
        --M122--
        M122
        === Diagnostics ===
        RepRapFirmware for Duet 2 Maestro version 3.2 running on Duet Maestro 1.0
        Board ID: 08DJM-956GU-P23TJ-6J9D0-3SD6P-9B0YU
        Used output buffers: 3 of 24 (11 max)
        === RTOS ===
        Static ram: 22292
        Dynamic ram: 73032 of which 76 recycled
        Never used RAM 19432, free system stack 162 words
        Tasks: NETWORK(ready,206) HEAT(blocked,340) TMC(blocked,117) MAIN(running,477) IDLE(ready,20)
        Owned mutexes:
        === Platform ===
        Last reset 00:03:13 ago, cause: power up
        Last software reset at 2021-04-25 21:11, reason: User, GCodes spinning, available RAM 19676, slot 0
        Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00000000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
        Error status: 0x00
        Aux0 errors 0,0,0
        MCU temperature: min 30.7, current 39.1, max 39.5
        Supply voltage: min 0.0, current 23.8, max 23.9, under voltage events: 0, over voltage events: 0, power good: yes
        Driver 0: position 1200, standstill, read errors 0, write errors 0, ifcnt 11, reads 32204, writes 11, timeouts 0, DMA errors 0
        Driver 1: position 4800, standstill, read errors 0, write errors 0, ifcnt 11, reads 32204, writes 11, timeouts 0, DMA errors 0
        Driver 2: position 2000, standstill, read errors 0, write errors 0, ifcnt 11, reads 32204, writes 11, timeouts 0, DMA errors 0
        Driver 3: position 0, standstill, read errors 0, write errors 0, ifcnt 8, reads 32207, writes 8, timeouts 0, DMA errors 0
        Driver 4: position 0, standstill, read errors 0, write errors 0, ifcnt 6, reads 32209, writes 6, timeouts 0, DMA errors 0
        Driver 5: position 0, assumed not present
        Driver 6: position 0, assumed not present
        Date/time: 2021-04-29 17:08:28
        Slowest loop: 21.79ms; fastest: 0.15ms
        I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
        === Storage ===
        Free file entries: 10
        SD card 0 detected, interface speed: 15.0MBytes/sec
        SD card longest read time 9.9ms, write time 0.0ms, max retries 0
        === Move ===
        DMs created 83, maxWait 91255ms, bed compensation in use: none, comp offset 0.000
        === MainDDARing ===
        Scheduled moves 12, completed moves 12, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
        === AuxDDARing ===
        Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
        === Heat ===
        Bed heaters = 0 -1, chamberHeaters = -1 -1
        === GCodes ===
        Segments left: 0
        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
        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
        Daemon is idle in state(s) 0
        Autopause is idle in state(s) 0
        Code queue is empty.
        === Network ===
        Slowest loop: 10.75ms; fastest: 0.02ms
        Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
        HTTP sessions: 1 of 8
        Interface state active, link 100Mbps full duplex

        --M98 P"config.g--
        M98 P"config.g
        Error: M98: control character in string

        --M98 P config.g---
        M98 P config.g
        Warning: Macro file config.g not found

        --homeall.g--
        ; homeall.g
        ; called to home all axes
        ;
        ; generated by RepRapFirmware Configuration Tool v3.2.3 on Sun Apr 11 2021 16:56:44 GMT-0700 (Pacific Daylight Time)
        G91 ; relative positioning
        G1 H2 Z5 F6000 ; lift Z relative to current position
        G1 H1 X-240 Y-240 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
        G1 H2 X5 Y5 F6000 ; go back a few mm
        G1 H1 X-240 Y-240 F240 ; move slowly to X and Y axis endstops once more (second pass)
        G90 ; absolute positioning
        G1 X15 Y60 F6000 ; go to first bed probe point and home Z
        G30 ; home Z by probing the bed

        ; Uncomment the following lines to lift Z after probing
        ;G91 ; relative positioning
        ;G1 Z5 F100 ; lift Z relative to current position
        ;G90 ; absolute positioning

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

          @scarwear said in Ender 3 Maestro BlTouch not homing:

          --M98 P"config.g--
          M98 P"config.g
          Error: M98: control character in string
          --M98 P config.g---
          M98 P config.g
          Warning: Macro file config.g not found

          M98 P"config.g" exactly like that.

          @scarwear said in Ender 3 Maestro BlTouch not homing:

          M401 and M402 do nothing.
          The BL touch flashes red (the whole body).

          Do you mean that sending M401/M402 causes the Bltouch to start flashing? Does the pin go up and down at startup?

          Z-Bot CoreXY Build | Thingiverse Profile

          scarwearundefined 1 Reply Last reply Reply Quote 0
          • scarwearundefined
            scarwear @Phaedrux
            last edited by

            @phaedrux said in Ender 3 Maestro BlTouch not homing:

            M98 P"config.g"

            As soon as I turn on the printer the BLtouch immediately starts the fast flashing (LED). The BLtouch never drops and retracts the PIN for self test.

            --M98 P"config.g"---
            M98 P"config.g"
            HTTP is enabled on port 80
            FTP is disabled
            TELNET is disabled
            Error: bad model parameters

            Thanks again.

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

              I think your BLTouch may have a bent pin or something then, because it should drop and raise the pin as a self test. Flashing red at startup means it's failing that test. You can remove the set screw at the top of the BLTouch to remove the pin to check it.

              Z-Bot CoreXY Build | Thingiverse Profile

              DIY-O-Sphereundefined 1 Reply Last reply Reply Quote 1
              • DIY-O-Sphereundefined
                DIY-O-Sphere @Phaedrux
                last edited by

                @phaedrux

                Config.g is wrong....
                should be

                M950 S0 C"zprobe.mod"                             ; create servo pin 0 for BLTouch
                M558 P9 C"zprobe.in" H5 F120 T6000                ; set Z probe type to bltouch and
                

                (UTC+1)

                DIY-O-Sphereundefined 1 Reply Last reply Reply Quote 0
                • DIY-O-Sphereundefined
                  DIY-O-Sphere @DIY-O-Sphere
                  last edited by DIY-O-Sphere

                  @scarwear

                  ; Z-Probe
                  M950 S0 C"^zprobe.mod" ; create servo pin 0 for BLTouch
                  M558 P9 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds

                  Change that to

                  M950 S0 C"zprobe.mod"                             ; create servo pin 0 for BLTouch
                  M558 P9 C"zprobe.in" H5 F120 T6000                ; set Z probe type to bltouch and 
                  

                  Check deployprobe.g
                  content should be:

                  M280 P0 S10
                  

                  Check retractprobe.g
                  content should be:

                  M280 P0 S90
                  

                  (UTC+1)

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

                    ; Z-Probe
                    M950 S0 C"^zprobe.mod"                         ; create servo pin 0 for BLTouch
                    M558 P9 C"^zprobe.in" H5 F120 T6000            ; set Z probe type to bltouch and the dive height + speeds
                    G31 P500 X0 Y0 Z2.5                            ; set Z probe trigger value, offset and trigger height
                    M557 X15:215 Y15:195 S20                       ; define mesh grid
                    

                    The pullup is correct. That's what the config tool generates, and I compared to my own maestro config and it's the same. He's also posted his deploy and retract above and it's correct too.

                    If the pin isn't deploying at power up for a self test then it hasn't even gotten to the config part yet.

                    Z-Bot CoreXY Build | Thingiverse Profile

                    DIY-O-Sphereundefined 1 Reply Last reply Reply Quote 0
                    • DIY-O-Sphereundefined
                      DIY-O-Sphere @Phaedrux
                      last edited by

                      @phaedrux

                      Worked for me and others...
                      https://forum.duet3d.com/topic/13924/maestro-rrf3-and-bltouch-issues/16

                      (UTC+1)

                      scarwearundefined 1 Reply Last reply Reply Quote 0
                      • scarwearundefined
                        scarwear @DIY-O-Sphere
                        last edited by

                        @diy-o-sphere @Phaedrux you were correct. Bent Pin. The simple things :). All is good now. Thank you both. Now off to do some printing.

                        1 Reply Last reply Reply Quote 0
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