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    Unsolved Creality CR Touch Sensor

    Duet Hardware and wiring
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    • Wladekcz
      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

      T3P3Tony 1 Reply Last reply Reply Quote 0
      • T3P3Tony
        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

        Wladekcz 1 Reply Last reply Reply Quote 0
        • Wladekcz
          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

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

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

            www.duet3d.com

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            • rjenkinsgb
              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.

              T3P3Tony 1 Reply Last reply Reply Quote 0
              • T3P3Tony
                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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                • rjenkinsgb
                  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.

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

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

                    www.duet3d.com

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                    • Wladekcz
                      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

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

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

                          Władekcz

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                          • rjenkinsgb
                            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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                            • Wladekcz
                              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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                              • rjenkinsgb
                                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.

                                Wladekcz 1 Reply Last reply Reply Quote 0
                                • Wladekcz
                                  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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                                  • rjenkinsgb
                                    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.

                                    Wladekcz 1 Reply Last reply Reply Quote 0
                                    • Wladekcz
                                      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

                                      T3P3Tony 1 Reply Last reply Reply Quote 0
                                      • T3P3Tony
                                        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

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

                                              From that photo, you still have some wires wrong.

                                              With the Duet connector as shown above:

                                              The first pin on the left should be just black (+5V)
                                              Second pin: Yellow; OK (Out from Duet, In to probe)..
                                              Third pin: Red and White; (Grounds).
                                              Fourth pin: Blue (Out of probe, In on duet).
                                              Fifth pin: No connection; OK.

                                              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.

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

                                                @rjenkinsgb This was the case in the previous version and you suggested that I change what I did. Take a look at the previous photos. So I have to return to the original version. Red - 5+, yellow - in, black with blue - ground, white - out, empty - 3.3V

                                                Władekcz

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                                                • Wladekcz
                                                  Wladekcz last edited by

                                                  @rjenkinsgb said in Creality CR Touch Sensor:
                                                  I connected according to your last instruction. The sensor glows blue, the core is hidden. Will not respond to M401 / M402. Without the "!" With Probe 1000. In your configuration "M558 P9 C" ^ io7.in "H5 F100 T6000" appears "^" And I don't know if it should be or not

                                                  IMG_20211104_074430.jpg
                                                  Bez tytułu.gif
                                                  M122.txt

                                                  config,g.txt

                                                  Władekcz

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                                                  • Wladekcz
                                                    Wladekcz last edited by

                                                    I measured the voltage on the sensor:
                                                    red - yellow 0.115Volt
                                                    red - blue 1.583V
                                                    red - black 4.905V
                                                    black - yellow 0.115V
                                                    black - blue 1.583V

                                                    Władekcz

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                                                    • rjenkinsgb
                                                      rjenkinsgb last edited by rjenkinsgb

                                                      OK; that wiring is now exactly the same as my fully working probe + 6HC setup.
                                                      I have just done a continuity check from the probe to the board to 100% confirm that is how it is connected.

                                                      The Crealty diagram shows the CL version uses exactly the same electrical wiring as the BL one.

                                                      So, either the Crealty documentation is wrong re. the probe control values etc. and it needs different parameters in the config file compared to a BL-Touch, or the probe has been damaged by reverse supply connections earlier on..

                                                      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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