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Endstops not stopping external drivers on the expansion header

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Duet Hardware and wiring
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  • undefined
    dc42 administrators
    last edited by 26 Dec 2017, 10:29

    I am puzzled by your report. The endstops work independently of whether you are using internal or external drivers, so there should be no difference between the two.

    The first step in debugging endstop issues is to test the endstops and their configuration. Go to the Settings -> Machine Properties page or Duet Web Control. In the "Endstop hit" column, the first, second and third rows show the state of the X, Y and Z endstops. Ignore the fact that column to the left says "Drive", because the "Endstop hit" column is unrelated to drives. Check that the X, Y and Z endstop states displayed there follow the state of the switches themselves.

    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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    • undefined
      mhallett
      last edited by 26 Dec 2017, 16:23

      They all register fine, 0,1,2 all say no and when triped they say yes. X,Y,Z all still move even when it says yes in that column.

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      • undefined
        whosrdaddy
        last edited by 26 Dec 2017, 16:44

        @mhallett:

        They all register fine, 0,1,2 all say no and when triped they say yes. X,Y,Z all still move even when it says yes in that column.

        sure why not? It is only when you home that they will serve…

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        • undefined
          mhallett
          last edited by 26 Dec 2017, 16:53

          So you are saying the only time an endstop works is when you are executing a home command?

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          • undefined
            whosrdaddy
            last edited by 26 Dec 2017, 17:30

            @mhallett:

            So you are saying the only time an endstop works is when you are executing a home command?

            Yes

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            • undefined
              mhallett
              last edited by 26 Dec 2017, 17:37

              Ok i will write all the home files and give it a shot, thank you.

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              • undefined
                Dougal1957
                last edited by 26 Dec 2017, 17:39

                yes the firmware will take hard limits coded into the config.g to take care of the print limits once homed

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                • undefined
                  mhallett
                  last edited by 26 Dec 2017, 18:38

                  No dice I ended up with two broken sendstops LOL. As i said earlier if I plug a standard stepper into the the integrated stepper drivers it functions just fine. It is just the expansion that is is not communicating with. Everything move is the correct direction to home just does not trigger the external drives to stop. I am going to swap the Ethernet board with a Wifi I have laying around and see what happens. maybe there is a short in the 50 pin connector. I am going to use the same sd card so everything is equal. Will see what happens.

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                  • undefined
                    mhallett
                    last edited by 26 Dec 2017, 19:36

                    Problem solved!!!!!! not sure what is wrong with the ethernet board but wifi works beautifully.Guess I will just hang on to the ethernet board for my sons delta that will use the integrated drivers. Thanks guys for all the help….

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                    • undefined
                      ect2
                      last edited by 27 Dec 2017, 00:11

                      So is it just a faulty board or other people have similar problems with endstops when using expansion breakout board?

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                      • undefined
                        mhallett
                        last edited by 27 Dec 2017, 00:47

                        I am guessing just a faulty expansion header. The rest of the board operates just fine but the 50 pin plug has something going on with it. Usually the problem is the endstop or the wiring so I was going nuts trying to figure out what was going on. This has been my first real issue that was not of my doing and I have built 4 printers all with duet electronics.

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                        • undefined
                          mhallett
                          last edited by 5 Jan 2018, 18:59

                          Is there anywhere I can send this Ethernet board to have it repaired?

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                          • undefined
                            dc42 administrators
                            last edited by 5 Jan 2018, 20:58

                            Bear in mind that when you map axis drivers using M584, that does not map endstops. You must still use the XYZ endstop inputs on 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

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                            • undefined
                              mhallett
                              last edited by 6 Jan 2018, 00:04

                              It was, I know it is a board issue. I swapped to my wifi board that I was saving for a different printer and it works fine. The only thing I changed was the board, I even swapped the sdcard so it was running identical settings and firmware. I don't want a free repair I will gladly pay to have it done, but just don't know of anyone qualified to send it to.

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                              • undefined
                                dc42 administrators
                                last edited by 6 Jan 2018, 07:04

                                I don't see how it can be a hardware problem. Please can you try the latest release (1.20.1RC2) and if that has the same problem, share your config.g and homing files.

                                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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                                • undefined
                                  mhallett
                                  last edited by 7 Jan 2018, 00:22

                                  Sure give me a day or two to switch the boards around. in advance these are my config.g and home files.
                                  ; Configuration file for Duet Ethernet (firmware version 1.20 or newer)
                                  ; executed by the firmware on start-up
                                  ;
                                  ; generated by RepRapFirmware Configuration Tool on Mon Dec 25 2017 21:58:57 GMT-0500 (Eastern Standard 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
                                  M911 S22 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000"

                                  M667 S1 ; Select CoreXY mode
                                  M208 X0 Y0 Z0 S1 ; Set axis minima
                                  M208 X673 Y673 Z694.29 S0 ; Set axis maxima

                                  ; Endstops
                                  M574 X1 Y2 Z2 S1 ; Set active high endstops
                                  M558 P1 X0 Y0 Z0 H5 F120 T6000 ; Set Z probe type to unmodulated and the dive height + speeds
                                  G31 P500 X30 Y-5 Z1.74 ; Set Z probe trigger value, offset and trigger height
                                  M557 X90:630 Y43:603 S30 ; Define mesh grid
                                  M584 X5 Y6 Z7:8:9 ; three Z motors connected to driver outputs 2, 5 and 6
                                  M671 X336:94:652.5 Y613:53:53 S30 ; leadscrews at rear left, front middle and rear right

                                  ; Drives
                                  M569 P3 S0 ; Drive 3 goes backwards
                                  M569 P4 S1 ; Drive 4 goes forwards
                                  M569 P5 S0 ; Drive 5 goes forwards
                                  M569 P6 S0 ; Drive 6 goes forwards
                                  M569 P7 S0 ; Drive 7 goes forwards
                                  M569 P8 S0 ; Drive 8 goes forwards
                                  M569 P9 S0 ; Drive 9 goes forwards
                                  M584 X5 Y6 Z7:8:9 E3:4 ; Apply custom drive mapping
                                  M350 X16 Y16 Z16:16:16 I0 ; Configure microstepping without interpolation
                                  M350 E16:16 I1 ; Configure microstepping with interpolation
                                  M92 X80 Y80 Z400:400:400 E476.5:476.5 ; Set steps per mm
                                  M566 X800 Y800 Z400:400:400 E120:120 ; Set maximum instantaneous speed changes (mm/min)
                                  M203 X8000 Y8000 Z2500:2500:2500 E1200:1200 ; Set maximum speeds (mm/min)
                                  M201 X1800 Y1800 Z700:700:700 E250:250 ; Set accelerations (mm/s^2)
                                  M906 X2000 Y2000 Z2000 E800:800 I30 ; Set motor currents (mA) and motor idle factor in per cent
                                  M84 S30 ; Set idle timeout

                                  ; Heaters
                                  M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
                                  M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
                                  M143 H0 S120 ; Set temperature limit for heater 0 to 120C
                                  M305 P1 X150 ; Set thermocoupler remapped 150
                                  M143 H1 S400 ; Set temperature limit for heater 1 to 400C
                                  M305 P2 X151 ; Set Thermocoupler remapped 151
                                  M143 H2 S400 ; Set temperature limit for heater 2 to 400C

                                  ; 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 H2 ; Define tool 1
                                  G10 P1 X89.40 Y0 Z0 ; Set tool 1 axis offsets
                                  G10 P1 R0 S0 ; Set initial tool 1 active and standby temperatures to 0C
                                  M912 P0 S-7

                                  ;*** Networking - Enable for both WiFi and Ethernet boards.
                                  M552 S1 ; Turn network on

                                  ;*** Ethernet networking: Adjust the IP address and gateway in the following 2 lines to suit your network
                                  M552 P0.0.0.0 ; (0 = DHCP)
                                  M554 P192.168.1.255 ; Gateway
                                  M553 P255.255.255.0 ; Netmask

                                  ; Fans
                                  M106 P3 T20 H100
                                  M563 P0 D0 H1 ; tool 0 uses extruder 0, heater 1 (and fan 0)
                                  M563 P1 D1 H2 F2 ; tool 1 uses extruder 1, heater 2 and fan 1 2

                                  ; homeall.g
                                  ; called to home all axes
                                  ;

                                  ; Relative positioning ; uncomment this line to lift the nozzle after homing
                                  G91
                                  ; Course home Z
                                  G1 Z725 F2500 S1
                                  ; Course home X
                                  G1 X-675 F8000 S1
                                  ; Course home Y
                                  G1 Y675 F8000 S1

                                  ; Move away from the endstops
                                  G1 X5 Y-5 F400
                                  G1 Z-5 F400

                                  ; Fine home X
                                  G1 X-10 F400 S1
                                  ; Fine home Y
                                  G1 Y10 F400 S1
                                  ;fine home Z
                                  G1 Z10 f400 S1

                                  ; Absolute positioning
                                  G90

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                                  • undefined
                                    mhallett
                                    last edited by 7 Jan 2018, 00:24

                                    also the firmware is 1.20.1RC2

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                                    • deckingmanundefined
                                      deckingman
                                      last edited by 1 Jul 2018, 09:56 7 Jan 2018, 09:55

                                      I don't know if this might be relevant but when I changed my CoreXY to XYUV, after mapping the drives I had to move the axes maxima to a position in the gcode file that was after the M584 command. I see in the config.g that your M208 is before the M584.

                                      Also this from the Wiki might be relevant.

                                      "Assigning a drive using M584 does not remove its old assignment. Therefore, if you assign a drive that defaults to being an extruder drive, you should also assign the extruder drives explicitly as in the above example. Failure to do so may result in unexpected behaviour".

                                      Edit. That's big printer BTW!

                                      Ian
                                      https://somei3deas.wordpress.com/
                                      https://www.youtube.com/@deckingman

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                                      • undefined
                                        mhallett
                                        last edited by 1 Aug 2018, 16:16 8 Jan 2018, 16:15

                                        Ok so I switched back to the Ethernet and used the same SD card and verified that the firmware is the undated one and when homing the endstops do not trigger the motors to stop. I even swapped the min and max codes so the max comes first and still the same. Not sure what the deal is.

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                                        • undefined
                                          dc42 administrators
                                          last edited by 8 Jan 2018, 17:33

                                          Please try disconnecting the endstop switches from the Duet. As you have configured them to be active high, this should make them all read as if triggered. Then try to home X or Y when it is not already in the home position. Does the motor move towards the homing switch, or not?

                                          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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