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    BLTouch working

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
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    • Motalwundefined
      Motalw
      last edited by

      @Nylkos:

      I am suggest that you create a resetalarm.g (your call on the name) file with M280 P3 S160 I1.
      That way, you can cancel the alarm by using

      M98 Presetalarm.g

      instead of remembering the M280 P3 S160 I1 command or resetting your printer.

      I have add it to my Default G-Codes (drop down menu).

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      • Nylkosundefined
        Nylkos
        last edited by

        Were you able to test your homez.g?

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        • Motalwundefined
          Motalw
          last edited by

          @Nylkos:

          Were you able to test your homez.g?

          Not yet, I'm working till late tonight. I'll post a feed back Around 9pm.
          and yes I do have the files retract & deploy. I did add it to bed.g & homeall.g but forgot about homez.g.
          But if I'm not wrong I believe it deploy and retract the probe automatically when i use G30.

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          • Motalwundefined
            Motalw
            last edited by

            @Nylkos:

            Were you able to test your homez.g?

            I have tested it but it work just as my configuration without theM98 commands.
            I also I'm using the correct resistor.
            ever thing works "almost" fine if I use M558 P1 but the probe drops some time.
            this is my configuration maybe I missed some thing;

            ; Configuration file for Duet WiFi (firmware version 1.17)
            ; executed by the firmware on start-up
            ;
            ; generated by RepRapFirmware Configuration Tool on Tue Sep 19 2017 08:19:05 GMT+0100 (GMT Daylight Time)

            ; General preferences
            M111 S0 ; Debugging off
            G21 ; Work in millimetres
            G90 ; Send absolute coordinates…
            M83 ; ...but relative extruder moves
            M555 P2 ; Set firmware compatibility to look like Marlin

            M667 S1 ; Select CoreXY mode
            M208 X0 Y0 Z0 S1 ; Set axis minima
            M208 X430 Y330 Z450 S0 ; Set axis maxima

            ; Endstops
            M574 X1 Y1 Z0 S0 ; Define active low and unused microswitches
            M558 P1 X0 Y0 Z1 H5 F120 T9000 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds
            G31 P10 X0 Y40 Z2 ; Set Z probe trigger value, offset and trigger height
            M557 X15:415 Y15:315 S20 ; Define mesh grid

            ; Drives
            M569 P0 S1 ; Drive 0 goes forwards
            M569 P1 S1 ; Drive 1 goes forwards
            M569 P2 S1 ; Drive 2 goes forwards
            M569 P3 S1 ; Drive 3 goes forwards
            M569 P4 S1 ; Drive 4 goes forwards
            M569 P5 S1 ; Drive 5 goes forwards
            M350 X16 Y16 Z16 E16:16:16 I1 ; Configure microstepping with interpolation
            M92 X100 Y100 Z400 E383:383:383 ; Set steps per mm
            M566 X1200 Y1200 Z12 E240:240:240 ; Set maximum instantaneous speed changes (mm/min)
            M203 X6000 Y6000 Z180 E3000:3000:3000 ; Set maximum speeds (mm/min)
            M201 X500 Y20 Z250 E250:250:250 ; Set accelerations (mm/s^2)
            M906 X1200 Y1200 Z1500 E800:800:800 I30 ; Set motor currents (mA) and motor idle factor in per cent
            M84 S30 ; Set idle timeout

            ; Heaters
            M143 S275 ; Set maximum heater temperature to 275C
            M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
            M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1

            ; Tools
            M563 P0 D0 H1 ; Define tool 0
            G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
            G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
            M563 P1 D1 H1 ; Define tool 1
            G10 P1 X0 Y0 Z0 ; Set tool 1 axis offsets
            G10 P1 R0 S0 ; Set initial tool 1 active and standby temperatures to 0C
            M563 P2 D2 H1 ; Define tool 2
            G10 P2 X0 Y0 Z0 ; Set tool 2 axis offsets
            G10 P2 R0 S0 ; Set initial tool 2 active and standby temperatures to 0C

            ; Network
            M550 PUltima Bot ; Set machine name
            M552 S1 ; Enable network
            ; Access point is configured manually via M587 by the user
            M586 P0 S1 ; Enable HTTP
            M586 P1 S0 ; Disable FTP
            M586 P2 S0 ; Disable Telnet

            ; Fans
            M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
            M106 P1 S1 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
            M106 P2 S1 I0 F500 H-1 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off

            ; Custom settings
            M307 H7 A-1 C-1 D-1 ;disable heater 7 on pmw5

            ; Miscellaneous
            T0 ; Select first tool

            Bed.g

            ; bed.g
            ; called to perform automatic bed compensation via G32
            ;
            ; generated by RepRapFirmware Configuration Tool on Mon Sep 18 2017 19:18:06 GMT+0100 (GMT Daylight Time)

            ; Clear any bed transform
            M561

            ; Deploy the mechanical Z probe
            M98 Pdeployprobe.g

            ; Probe the bed at 5 points
            G30 P0 X15 Y15 H0 Z-99999
            G30 P1 X15 Y315 H0 Z-99999
            G30 P2 X415 Y315 H0 Z-99999
            G30 P3 X415 Y15 H0 Z-99999
            G30 P4 X215 Y165 H0 Z-99999 S
            ; Retract the mechanical Z probe
            M98 Pretractprobe.g

            Homeall.g

            ; homeall.g
            ; called to home all axes
            ;
            ; generated by RepRapFirmware Configuration Tool on Mon Sep 18 2017 19:21:01 GMT+0100 (GMT Daylight Time)

            ; Relative positioning
            G91

            ; Lift Z
            G1 Z5 F9000

            ; Deploy the mechanical Z probe
            M98 Pdeployprobe.g

            ; Course home X and Y
            G1 X-435 Y-335 F3600 S1

            ; Move away from the endstops
            G1 X5 Y5 F9000

            ; Fine home X and Y
            G1 X-435 Y-335 F360 S1

            ; Absolute positioning
            G90

            ; Go to first bed probe point and home Z
            G1 X15 Y15 F9000
            G30

            ; Uncomment the following line to lift the nozzle after probing
            ;G1 Z10 F150

            ; Retract the mechanical Z probe
            M98 Pretractprobe.g

            Homez.g

            ; homez.g
            ; called to home the Z axis
            ;
            ; generated by RepRapFirmware Configuration Tool on Tue Sep 19 2017 08:11:32 GMT+0100 (GMT Daylight Time)

            ; Lift Z relatively to current position
            G91
            G1 Z5 F9000

            ; Back to absolute positioning
            G90

            ; Go to first bed probe point and home the Z axis
            G1 X15 Y5 F9000
            G30

            ; Uncomment the following lines to lift Z after probing
            G91
            G1 Z5 F150
            G90

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            • Nylkosundefined
              Nylkos
              last edited by

              What are your values in Z-Probe for triggered and deploy?

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              • Motalwundefined
                Motalw
                last edited by

                The shows 4 some times 5 when triggered and 0 when not triggered. (using M558 P1)
                If I uses M558 P5 then it will always be 0.

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                • Motalwundefined
                  Motalw
                  last edited by

                  just run a mesh grid and this was the results :

                  share pics online
                  I'm Almost giving up on this … I have tried the DC42 IR Probe but because my heatbed is glass when I use tape or ABS juice on the surface the IR probe needs to be re-calibrated.

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                  • Nylkosundefined
                    Nylkos
                    last edited by

                    I just noticed that in your HomeZ.g you do not deploy or retract.

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                    • Motalwundefined
                      Motalw
                      last edited by

                      @Nylkos:

                      I just noticed that in your HomeZ.g you do not deploy or retract.

                      it is not necessary because the firmware does it automatically when G30 is called. but I have tried it with the deploy and retract code but did not make any difference.
                      I have now just tried to do a mesh levelling using the DC42 IR Probe and this was the result;

                      I have a aluminium heat bed painted black and with a 6mm sheet of glass on top of it so it is 100% flat. I dont know why I keep get this results with the BLTouch and the IR Probe. any idea?

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                      • Motalwundefined
                        Motalw
                        last edited by

                        just did a mesh grid using the BLTouch and another with the DC42 IR Probe. can anyone help with it?why both of then are giving bad results?
                        BLTouch

                        DC42 IR Probe

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                        • Nylkosundefined
                          Nylkos
                          last edited by

                          How is your bed mounted, is the movement smooth or staggered at low and fast speed

                          1 Reply Last reply Reply Quote 0
                          • dc42undefined
                            dc42 administrators
                            last edited by

                            The IR probe results have one corner point much lower than the rest. There must be something in that corner to cause that, or perhaps you are probing too close to the edge.

                            Duet WiFi hardware designer and firmware engineer
                            Please do not ask me for Duet support via PM or email, use the forum
                            http://www.escher3d.com, https://miscsolutions.wordpress.com

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                            • Motalwundefined
                              Motalw
                              last edited by

                              It is a Modified D-Bot with 3 x T8 rods its pretty solid. and the heat bed is a 6mm sheet of glass over a aluminium plate painted black.
                              it is probing at least 50mm away from the edges.
                              I am doing some tests now with the DC42 IR Probe it seems to be more reliable than the BLTouch.
                              got this result doing a probing in just 1 point with this setting

                              M558 P1 X0 Y0 Z1 H5 F120 T12000 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds
                              G31 P200 X0 Y0 Z1.4 ; Set Z probe trigger value, offset and trigger height

                              M98 P0:/macros/BLTouch 20 probing 1 point
                              Bed probe heights: -0.657 -0.660 -0.660 -0.655 -0.657 -0.657 -0.655 -0.660 -0.657 -0.657 -0.662 -0.662 -0.655 -0.657 -0.660 -0.655 -0.652 -0.662 -0.657 -0.657 -0.660, mean -0.658, deviation from mean 0.003

                              Now I will do a G29 and see if it is consistent with this result.

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                              • Motalwundefined
                                Motalw
                                last edited by

                                Just did a G29 and got this with the IR Probe

                                1 Reply Last reply Reply Quote 0
                                • avaradusundefined
                                  avaradus
                                  last edited by

                                  Hello ALL ! 😃

                                  I'm using DUET 0.6 and TLTouch sensor from aliexpress. It's clone of BLTouch.
                                  While sensor is triggered with 240 ohm resistor, output value is 1.3 v. it's low level and not worked!
                                  After i install 560 ohm resistor then output voltage becomes 2 v and it is a hi level and now work fine.
                                  I wrote this information may be it's help anybody who use TLTouch sensor.

                                  Thank's for all, and bye! 😃

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                                  • huntajavundefined
                                    huntajav
                                    last edited by

                                    @dc42:

                                    The IR probe results have one corner point much lower than the rest. There must be something in that corner to cause that, or perhaps you are probing too close to the edge.

                                    hey dc42. I have a bltouch smart and doing mesh bed compensation on duet wifi. Why is my z-axis not moving like in the video on the first page of this thread? Does mesh bed compensation and autobed compensation cause different z-axis behavior? I also have two steppers in the z-axis connected to ZA and ZB on the duet wifi board. lmk, thanks.

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                                    • dc42undefined
                                      dc42 administrators
                                      last edited by

                                      @huntajav:

                                      hey dc42. I have a bltouch smart and doing mesh bed compensation on duet wifi. Why is my z-axis not moving like in the video on the first page of this thread? Does mesh bed compensation and autobed compensation cause different z-axis behavior? I also have two steppers in the z-axis connected to ZA and ZB on the duet wifi board. lmk, thanks.

                                      How is it behaving then?

                                      Duet WiFi hardware designer and firmware engineer
                                      Please do not ask me for Duet support via PM or email, use the forum
                                      http://www.escher3d.com, https://miscsolutions.wordpress.com

                                      1 Reply Last reply Reply Quote 0
                                      • huntajavundefined
                                        huntajav
                                        last edited by

                                        @dc42:

                                        @huntajav:

                                        hey dc42. I have a bltouch smart and doing mesh bed compensation on duet wifi. Why is my z-axis not moving like in the video on the first page of this thread? Does mesh bed compensation and autobed compensation cause different z-axis behavior? I also have two steppers in the z-axis connected to ZA and ZB on the duet wifi board. lmk, thanks.

                                        How is it behaving then?

                                        It stays stationary unless there is a layer change. What I noticed on the other video is that the z-axis steppers would move back and forth based on compensation needs. Does this mean my bed is just perfectly leveled (highly unlikely)?

                                        1 Reply Last reply Reply Quote 0
                                        • Syko_Symaticundefined
                                          Syko_Symatic
                                          last edited by

                                          I fear I may have messed up! I think I have had my BLTouch connected with a 10ohm resistor instead! Could I have damaged something? I have recently rebuilt the printer and when testing the BLTouch will not self test or fire. It does reset but nothing else? I am picking up some new (240ohm metal film) resistors tonight to replace the current (wrong) one.

                                          Have I screwed my board?

                                          1 Reply Last reply Reply Quote 0
                                          • dc42undefined
                                            dc42 administrators
                                            last edited by

                                            It's unlikely that you have damaged the Duet.

                                            Duet WiFi hardware designer and firmware engineer
                                            Please do not ask me for Duet support via PM or email, use the forum
                                            http://www.escher3d.com, https://miscsolutions.wordpress.com

                                            1 Reply Last reply Reply Quote 0
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