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X5SA DuetWifi - Common Problems and Fixes.

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  • undefined
    chriskimbr
    last edited by 21 Feb 2019, 06:54

    5_1550732071399_homex.g 4_1550732071399_homedelta.g 3_1550732071399_homeall.g 2_1550732071398_config.g 1_1550732071398_homez.g 0_1550732071398_homey.g

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    • undefined
      chriskimbr @DocTrucker
      last edited by 21 Feb 2019, 06:55

      @doctrucker Home X and Home Y seem to be working now.
      However Home Z sends the Bed down(+) instead of up(-) towards the hot end.

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      • undefined
        DocTrucker
        last edited by DocTrucker 21 Feb 2019, 06:56

        How did you get on following the list of checks I suggested? Where did it go wrong?

        Edit: writing while you posted!

        Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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        • undefined
          DocTrucker
          last edited by DocTrucker 21 Feb 2019, 07:18

          Try running I0 on M558 in the config file?

          Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

          undefined 1 Reply Last reply 21 Feb 2019, 07:36 Reply Quote 0
          • undefined
            DocTrucker
            last edited by 21 Feb 2019, 07:21

            If you look on the web control it displays the reading from the probe. If it doesn't menyion the probe on the endstop status check there.

            You wang to ensure it triggers at the right level manually before using it automatically.

            If it is triggered when it shouldn't be and not triggered when it should be (according to dwc or firmware rather than light on probe) then the I on M558 is inverted.

            Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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            • undefined
              DocTrucker
              last edited by DocTrucker 21 Feb 2019, 07:23

              ...but it will raise a little before diving as defined by the dive height.

              "When using mesh bed compensation or running G30 commands with specified XY coordinates (for example from the bed.g file), the firmware moves the Z probe to this height above where it expects the bed to be before commencing probing."

              https://duet3d.dozuki.com/Wiki/Gcode

              Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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              • undefined
                chriskimbr @DocTrucker
                last edited by 21 Feb 2019, 07:36

                @doctrucker said in X5SA DuetWifi - Common Problems and Fixes.:

                I0

                didn't help. Z dives when hitting homez.

                undefined 1 Reply Last reply 21 Feb 2019, 08:02 Reply Quote 0
                • undefined
                  dc42 administrators
                  last edited by 21 Feb 2019, 07:54

                  Have you tested and calibrated the Z probe? https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe

                  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
                    DocTrucker @chriskimbr
                    last edited by DocTrucker 21 Feb 2019, 08:02

                    @chriskimbr more than 5mm? Leave the I setting as it was if the duet was reporting it triggered when it should be.

                    Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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                    • undefined
                      chriskimbr
                      last edited by 21 Feb 2019, 08:09

                      homex works great
                      homey works great

                      homez sloooowly dives to bottom and grinds into it.

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                      • undefined
                        DocTrucker
                        last edited by DocTrucker 21 Feb 2019, 09:52

                        Do you mean it is forcing the nozzle into the bed, or the elevator to it's maximum travel position away from the nozzle?

                        Move (manually if needbe) the machine so that the nozzle is ~10mm from the bed.

                        Using the nudge buttons when you press +1mm does the gap between the nozzle and platform get larger or smaller?

                        If smaller then you need to invert the drive direction.

                        Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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                        • undefined
                          chriskimbr
                          last edited by 22 Feb 2019, 07:24

                          home z sends the bed down. It should be going up.
                          nudging is disabled until all axis are homed.

                          undefined 1 Reply Last reply 22 Feb 2019, 08:09 Reply Quote 0
                          • undefined
                            deckingman @chriskimbr
                            last edited by deckingman 22 Feb 2019, 08:09

                            @chriskimbr said in X5SA DuetWifi - Common Problems and Fixes.:

                            home z sends the bed down. It should be going up.
                            nudging is disabled until all axis are homed.

                            It sounds like you just need to reverse the direction of the Z motor. To nudge the bed prior to homing use the S2 parameter. So from the console, input G1 Z1 S2 and bed should go down 1mm. If it goes up, that confirms the motor direction needs to be reversed. If your Z motor is connected to P2 then M569 P2 Sn (if "n" is zero set it to 1 and vice versa).

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

                            undefined 1 Reply Last reply 22 Feb 2019, 08:13 Reply Quote 0
                            • undefined
                              dc42 administrators @deckingman
                              last edited by 22 Feb 2019, 08:13

                              @deckingman said in X5SA DuetWifi - Common Problems and Fixes.:

                              @chriskimbr said in X5SA DuetWifi - Common Problems and Fixes.:

                              home z sends the bed down. It should be going up.
                              nudging is disabled until all axis are homed.

                              It sounds like you just need to reverse the direction of the Z motor. To nudge the bed prior to homing use the S2 parameter. So from the console, input G1 Z1 S2 and bed should go down 1mm. If it goes up, that confirms the motor direction needs to be reversed. If your Z motor is connected to P2 then M569 P2 Sn (if "n" is zero set it to 1 and vice versa).

                              Before sending G1 S2 moves to nudge the bed, send G91 to put the motion in relative mode.

                              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

                              undefined 1 Reply Last reply 22 Feb 2019, 08:18 Reply Quote 0
                              • undefined
                                deckingman @dc42
                                last edited by 22 Feb 2019, 08:18

                                @dc42 said in X5SA DuetWifi - Common Problems and Fixes.:

                                Before sending G1 S2 moves to nudge the bed, send G91 to put the motion in relative mode.

                                Good catch! - The Caffeine hasn't kicked in yet ☺

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

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                                • undefined
                                  DocTrucker
                                  last edited by 22 Feb 2019, 09:11

                                  From my first post:

                                  "Move head to middle of x, y, z travel.
                                  Power on machine.
                                  Send gcode G92 X0 Y0 Z0.
                                  Use the web control to nudge each axis in small movements to ensure it moves in the correct direction."

                                  Correct motion is raising the bed for a negative z nudge and dropping it for a posative.

                                  Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

                                  undefined 1 Reply Last reply 22 Feb 2019, 09:57 Reply Quote 0
                                  • undefined
                                    DocTrucker
                                    last edited by DocTrucker 22 Feb 2019, 09:37

                                    To be fair it is a common gotcha that one and it should be made more obvious in the documentation. I'll look at tweaking that later on when I'm not looking after my little one!

                                    Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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                                    • undefined
                                      deckingman @DocTrucker
                                      last edited by 22 Feb 2019, 09:57

                                      @doctrucker said in X5SA DuetWifi - Common Problems and Fixes.:

                                      From my first post:

                                      "Move head to middle of x, y, z travel.
                                      Power on machine.
                                      Send gcode G92 X0 Y0 Z0.
                                      Use the web control to nudge each axis in small movements to ensure it moves in the correct direction."

                                      Correct motion is raising the bed for a negative z nudge and dropping it for a posative.

                                      Wes,

                                      To move an axis before it's been homed, you need to use S2 in the travel moves.
                                      G92 X0 Y0 Z0 won't work before the machine has been homed because it can't know the absolute position. Also, it'll only move to the centre of the bed if X0 Y0 has been set to the centre (but it would still need to be homed first).
                                      The web control buttons won't work until the machine has been homed because they don't use S2. So to nudge an axis before it's been homed, one needs to use the console and first input G91 to set relative, then use G1 with S2 (or use M564 H0).

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

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                                      • undefined
                                        dc42 administrators
                                        last edited by dc42 22 Feb 2019, 10:41

                                        Actually, sending G92 X0 Y0 Z0 is equivalent to homing the printer in that it flags the axes mentioned as homed.

                                        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

                                        undefined 1 Reply Last reply 22 Feb 2019, 11:49 Reply Quote 0
                                        • undefined
                                          DocTrucker
                                          last edited by 22 Feb 2019, 11:05

                                          Yup, I use that regularly while testing.

                                          Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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