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    Creality CR Touch Sensor

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    Duet Hardware and wiring
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    • Wladekczundefined
      Wladekcz
      last edited by

      Hello everyone.
      I apologize in advance but I am using the translator to translate to English.
      Needs help getting started CREALITY 3D CR BL Touch Sensor.
      I connected the sensor to the Duet3_MB6HC board. After starting the hob, the sensor is extended and remains so until the hob is powered off. The M402 command is not working. I read about connecting a resistor, but I did not find a schematic. Please help.

      Władekcz

      T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
      • T3P3Tonyundefined
        T3P3Tony administrators @Wladekcz
        last edited by

        @wladekcz have you seen this documentation here:
        https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_BLTouch

        can you send a picture showing the way you have it wired at the duet end (and any connectors if you have got connectors in the wiring.

        please post your config.g using the </> text formatting so its easy to read here.

        www.duet3d.com

        Wladekczundefined 1 Reply Last reply Reply Quote 0
        • Wladekczundefined
          Wladekcz @T3P3Tony
          last edited by

          @t3p3tony Yes, I read this document and connected according to it. The document is about Bl_Touch, I have a problem with CR_Touch

          Władekcz

          T3P3Tonyundefined rjenkinsgbundefined 2 Replies Last reply Reply Quote 0
          • T3P3Tonyundefined
            T3P3Tony administrators @Wladekcz
            last edited by

            @wladekcz 14466bb1-382c-4f09-ae9f-f42d6efd9ac4-image.png

            www.duet3d.com

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            • rjenkinsgbundefined
              rjenkinsgb @Wladekcz
              last edited by

              @wladekcz said in Creality CR Touch Sensor:

              I have a problem with CR_Touch

              It is still a genuine Anclabs BL Touch probe, just in a different box and with a cable that has different colours.

              I have one on my machine with a Duet3 6HC board (on IO_7), it works fine.

              The cable with mine did not match either set of colours in the examples page.
              Just work from the wire positions on the probe connector and use the correct colour, whatever is fitted to that connector pin, for that signal.

              Robert J.

              Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.

              T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
              • T3P3Tonyundefined
                T3P3Tony administrators @rjenkinsgb
                last edited by

                @rjenkinsgb what are the alternative cable colours used? we can add those to the documentation. Cheers!

                www.duet3d.com

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                • rjenkinsgbundefined
                  rjenkinsgb
                  last edited by

                  White, black, yellow, red, blue.
                  The red & blue are reversed from the existing Crealty notes!

                  (And thanks for asking; the close-up photo showed the cable was not quite seated fully - it is now.)

                  BLTouch.jpg

                  Robert J.

                  Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.

                  T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                  • T3P3Tonyundefined
                    T3P3Tony administrators @rjenkinsgb
                    last edited by

                    @rjenkinsgb thanks. so ground is now red? what chaos

                    www.duet3d.com

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                    • Wladekczundefined
                      Wladekcz
                      last edited by

                      BL-Touch is a kind of semiconductor hall sensor. Creality's CR-Touch is a sensor based on optical technology.

                      Władekcz

                      T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                      • T3P3Tonyundefined
                        T3P3Tony administrators @Wladekcz
                        last edited by T3P3Tony

                        @wladekcz said in Creality CR Touch Sensor:

                        CR-Touch

                        ahh so they changed to this:
                        https://www.creality3dofficial.com/products/creality-cr-touch ?

                        Have you got the pinout, data sheet, voltage levels etc?

                        www.duet3d.com

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                        • Wladekczundefined
                          Wladekcz
                          last edited by

                          Yes, I have this datasheet, it still doesn't change anything.

                          Władekcz

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                          • rjenkinsgbundefined
                            rjenkinsgb
                            last edited by rjenkinsgb

                            OK, confusion! The mention of BL Touch in the original question made it appear to the the Antclabs one.

                            They appear to both use exactly the same connections & same newer colour cable as my BL version - but do have some differences in the control signal, unfortunately, as the articles mention different software/firmware addons.

                            https://www.creality3dofficial.com/products/creality-bl-touch

                            https://www.creality3dofficial.com/products/creality-cr-touch

                            Edit - looking through the installation docs for the new CR touch, it still uses the BL Touch firmware - so presumably it does use the same signals?? Possibly just a custom BL Touch version for them?

                            Robert J.

                            Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.

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                            • Wladekczundefined
                              Wladekcz
                              last edited by

                              I am sending photos and files: configuration, M122.

                              config_g.txt
                              config-override _g.txt
                              M122.txt
                              sensor CR.jpg
                              sensor CR-QR.jpg
                              kabel-1.jpg
                              kabel2.jpg
                              kabel-3.jpg

                              Władekcz

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                              • rjenkinsgbundefined
                                rjenkinsgb
                                last edited by

                                Where you show the plug and socket linking the two cables, the wire sequence from the probe is reversed.

                                I believe it should be, without rearranging the plug at the Duet board end:

                                Probe white and red to duet red.
                                Probe black to duet black
                                Probe yellow to duet blue
                                Probe blue to duet green

                                Robert J.

                                Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.

                                Wladekczundefined 1 Reply Last reply Reply Quote 0
                                • Wladekczundefined
                                  Wladekcz @rjenkinsgb
                                  last edited by

                                  @rjenkinsgb creality.jpg

                                  Yes you are right, this is another attempt, in the previous version "IN" and "OUT" were swapped and the effect was the same. I am thinking about the resistor but I do not know where to connect it.

                                  Władekcz

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                                  • rjenkinsgbundefined
                                    rjenkinsgb
                                    last edited by

                                    The power (+5v) and ground are still reversed!

                                    Change it to match the connections I put in my last post.

                                    Robert J.

                                    Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.

                                    Wladekczundefined 1 Reply Last reply Reply Quote 0
                                    • Wladekczundefined
                                      Wladekcz @rjenkinsgb
                                      last edited by

                                      @rjenkinsgb Unfortunately, the reversal of 5+ and the ground did not give the expected effect. The core was not ejected. M401 and M402 do not work. Robert please check config_g.
                                      It is like this
                                      "; Probe Z
                                      M950 S0 C "io7.out"
                                      M558 P9 C "! Io7.in" H5 F120 T6000
                                      G31 P500 X30 Y30 Z2.5
                                      M557 X30: 280 Y30: 280 S30
                                      Shouldn't it be like this:
                                      M950 S0 C "io7.out"
                                      M558 P9 C "^! Io7.in" H5 F120 T6000
                                      G31 P500 X30 Y30 Z2.5
                                      M557 X30: 280 Y30: 280 S30

                                      Władekcz

                                      T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                                      • T3P3Tonyundefined
                                        T3P3Tony administrators @Wladekcz
                                        last edited by

                                        @wladekcz said in Creality CR Touch Sensor:

                                        M558 P9 C "^! Io7.in" H5 F120 T6000

                                        no you should not have the pullup (^) on the input pin. Also if its the same as a normal BL touch from a signal perspective then the signal inversion (!) is also not needed so try:

                                        M950 S0 C "io7.out"
                                        M558 P9 C "Io7.in" H5 F120 T6000
                                        

                                        www.duet3d.com

                                        Wladekczundefined 1 Reply Last reply Reply Quote 0
                                        • Wladekczundefined
                                          Wladekcz @T3P3Tony
                                          last edited by Wladekcz

                                          @t3p3tony I connected the sensor cable directly to the connector on the Duet3. After connecting the power, the sensor turned blue.

                                          IMG_20211103_144048.jpg

                                          Still not working properly. I measured the tensions between the cables. Between the ground and 5+ "4.9V". Between ground and white and yellow "4.88V". I read on the wiki that out and in only tolerate 3.3V. Do you have any suggestions.

                                          IMG_20211103_144159.jpg

                                          Władekcz

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                                          • rjenkinsgbundefined
                                            rjenkinsgb
                                            last edited by

                                            This is my BLTouch config:

                                            ; Z-Probe
                                            M950 S0 C"io7.out"                           ; create servo pin 0 for BLTouch
                                            M558 P9 C"^io7.in" H5 F100 T6000             ; set Z probe type to bltouch and the dive height + speeds
                                            G31 P500 X-46 Y4.5 Z2.840                    ; set Z probe trig value, offset (from TC face centre)+ trigger height
                                            M557 X0:240 Y10:270 S20                      ; define mesh grid
                                            

                                            You need to adjust the offsets and grid to suit your machine.

                                            It is unfortunately possible that it may have been damaged by having the positive and negative power reversed.

                                            Robert J.

                                            Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.

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