Duet3D Logo

    Duet3D

    • Register
    • Login
    • Search
    • Categories
    • Tags
    • Documentation
    • Order

    Solved BLTouch issue Duet 3 Mini

    Using Duet Controllers
    5
    11
    162
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • asimitabi
      asimitabi last edited by

      Hello,

      I have a problem with my BLTouch sensor.
      I have wired the sensor as follows on the i02-PIN:
      +5V - Red
      OUT - Orange
      GND - Black
      IN - White 3.3V - NONE
      (Brown cable is not connected at this moment)

      I have entered the following in the config.g file:

      M950 S0 C "io2.out"                    
      M558 P9 C "io2.in" H5 F240 T10800 A5
      G31 P25 X-28.00 Y-13.00 Z0.90
      

      My homez.g looks like this:

      ; BLTouch
      M280 P0 S160           
      M280 P0 S90            
      
      G91                     
      G1 H2 Z5 F6000          
      
      G90                    
      G1 X250 Y250 F10000     
      G30                    
      
      ; lift Z after probing
      G91                   
      G1 Z20 F100             
      G90
      

      When I run Home Z, there is no error message and the bed moves towards the sensor, but the PIN does not move out.
      When sending M280 signals for Deployprobe or retractprobe nothing happens.

      When starting the printer, however, the PIN moves in and out 2 times.

      Have I done something wrong or forgotten something?

      Firmware: RepRapFirmware for Duet 3 Mini 5+ 3.3RC2 (2021-05-11)

      Thanks a lot!

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

        @asimitabi Its been along time since ive used a bl touch, but I`m pretty sure you will need the brown wire connected to make it work as its the ground to the servo, have a read through this 🙂

        https://docs.duet3d.com/en/User_manual/Troubleshooting/BLTouch_troubleshooting

        Voron Trident based (4Z) - too much to list!

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

          @asimitabi said in BLTouch issue Duet 3 Mini:

          3.3RC2

          You should also update your firmware to 3.3 final and then 3.4 final.

          Z-Bot CoreXY Build | Thingiverse Profile

          1 Reply Last reply Reply Quote 0
          • asimitabi
            asimitabi @jumpedwithbothfeet last edited by asimitabi

            @jumpedwithbothfeet I already tried to connect it to GND on another Pin of the board but then when I try to home z it says the probe is already triggered at the start even if its not. I will try to find a solution in this but on my Duet 2 Wifi everything is working normal with the BLTouch (another printer). I did everything like it is described here: https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe

            I will also update the firmware if this will make a difference 🙂

            Edit: Im on the latest firmware now (3.4) but still the same problem.
            Where should I plug in the brown cable? I think GND on one of the io pins in the near of i02 should work?

            droftarts 1 Reply Last reply Reply Quote 0
            • droftarts
              droftarts administrators @asimitabi last edited by

              @asimitabi This is the current documentation page: https://docs.duet3d.com/User_manual/Connecting_hardware/Z_probe_connecting#bltouch

              Remove the space between the C and pin name on both commands. If I send it with the space, I get an error, without it works fine:

              M950 S0 C"io3.out" ; this is accepted
              
              M950 S0 C "io3.out" ; this generates following error
              Error: M950: expected string expression
              

              You can also check your config.g by sending M98 P"config.g". It will probably show the same error.

              Generally you should not need to send M280 commands to control the BLTouch in homez.g.
              Please post your deployprobe.g and retractprobe.g.

              Ian

              Cartesian bed-slinger with Duet 3 Mini 5+ WiFi : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 2 Wifi (in progress)

              asimitabi 1 Reply Last reply Reply Quote 0
              • asimitabi
                asimitabi @droftarts last edited by

                @droftarts In the config file I have it without the space sorry I got this wrong here but it is fine in the actual file.

                M98 is showing:

                M98 P"config.g"
                Error: Height map file 0:/sys/heightmap.csv not found
                HTTP is enabled on port 80
                FTP is disabled
                TELNET is disabled
                Warning: Heater 0 predicted maximum temperature at full power is 346°C
                Warning: Heater 1 predicted maximum temperature at full power is 527°C
                Warning: Macro file config-override.g not found
                

                So this should be fine regarding the BLTouch.

                My Deployprobe.g:

                M280 P0 S10       ; Deploy the BLTouch pin
                

                My Retractprobe.g:

                M280 P0 S90           ; Retract the BLTouch pin
                

                Thanks!

                droftarts 1 Reply Last reply Reply Quote 0
                • droftarts
                  droftarts administrators @asimitabi last edited by

                  @asimitabi In that case, I'd suspect a continuity problem on the white servo control wire. Check it's connected to the right pin on the connector, too.

                  Ian

                  Cartesian bed-slinger with Duet 3 Mini 5+ WiFi : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 2 Wifi (in progress)

                  asimitabi 1 Reply Last reply Reply Quote 0
                  • asimitabi
                    asimitabi @droftarts last edited by asimitabi

                    @droftarts I double checked it now its connected and there is no cable/connection problem.

                    Here is a photo of the i02 pin:

                    IMG_4756.JPG

                    Also:
                    The z-Probe status is "1000" all the time

                    Gixxerfast 1 Reply Last reply Reply Quote 0
                    • Gixxerfast
                      Gixxerfast @asimitabi last edited by

                      @asimitabi To me it looks like you have it connected to io4.

                      a0c9691b-3695-43ab-8a5a-56494d423d2f-image.png

                      Or am I looking at the wrong picture ?

                      Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                      Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                      Ender 3 Pro with BTT SKR-2 + RRF

                      asimitabi 1 Reply Last reply Reply Quote 3
                      • asimitabi
                        asimitabi @Gixxerfast last edited by

                        @gixxerfast holy sh*t I am so dumb where can I give back my engineering degree?

                        Thank you guys and sorry for that...with the two large plugs, I apparently looked a pin row later...

                        Thanks again and regards! 🙂

                        Gixxerfast 1 Reply Last reply Reply Quote 0
                        • Gixxerfast
                          Gixxerfast @asimitabi last edited by Gixxerfast

                          @asimitabi 🙂
                          Also make sure to have a look in here (or newer docs preferably)

                          // https://duet3d.dozuki.com/Wiki/Duet_3_Mini_5plus_Hardware_overview#Section_IO_port_pin_capabilities

                          https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Mini_5+_Hardware_Overview

                          I guess you want the pwm capability.

                          Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                          Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                          Ender 3 Pro with BTT SKR-2 + RRF

                          1 Reply Last reply Reply Quote 0
                          • Topic has been marked as a question  Phaedrux Phaedrux 
                          • Topic has been marked as solved  Phaedrux Phaedrux 
                          • First post
                            Last post
                          Unless otherwise noted, all forum content is licensed under CC-BY-SA