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    I could use some help

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
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    • A Former User?
      A Former User @fcwilt
      last edited by

      @fcwilt well, here's the first problem, and I remember changing this to half of these numbers:

      M92 X80.00 Y80.00 Z4000.00 E420.00

      fcwiltundefined 1 Reply Last reply Reply Quote 0
      • fcwiltundefined
        fcwilt @A Former User
        last edited by

        @mac said in I could use some help:

        @fcwilt well, here's the first problem, and I remember changing this to half of these numbers:

        M92 X80.00 Y80.00 Z4000.00 E420.00

        All that matters is what they are now in the config.g file because those are the values that you have been using everything you have re-booted the printer.

        If what is there now for Y now is 80 then just replace the 80 with 85.433, re-boot and re-test Y movement.

        Thanks.

        Frederick

        Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

        A Former User? 1 Reply Last reply Reply Quote 0
        • A Former User?
          A Former User @fcwilt
          last edited by A Former User

          @fcwilt I'm been redoing the measurement to see if it's the same each time. I'm more comfortable with 1.5625 inches, which is 39.6875 mm.

          50 divided by 39.6875 is 1.2598.
          80 times 1.2598 is 100.784.

          That sounds like 100 to me.

          I think those are better numbers, don't you?

          fcwiltundefined 1 Reply Last reply Reply Quote 0
          • fcwiltundefined
            fcwilt @A Former User
            last edited by fcwilt

            @mac said in I could use some help:

            @fcwilt I'm been redoing the measurement to see if it's the same each time. I'm more comfortable with 1.5625 inches, which is 39.6875 mm.

            50 divided by 39.6875 is 1.2598.
            80 times 1.2598 is 100.784.

            I think those are better numbers, don't you?

            Now that is starting to make sense. 100 is a value that is common in "printer land".

            So assuming X and Y use the same hardware setup (belts, pulleys, etc) then you should enter 100 for X and Y.

            I bet that will work out just fine.

            Especially once we find the issue that is causing the X stepper to malfunction. Any evidence yet to indicate an intermittent wiring problem?

            Oh yes. After you have 100 in place for Y, at least, re-boot and try homing Y and see if it triggers the Y endstop twice and returns to the center of the bed.

            I have my fingers crossed.

            Frederick

            Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

            A Former User? 1 Reply Last reply Reply Quote 0
            • A Former User?
              A Former User @fcwilt
              last edited by

              @fcwilt Okay, I'm going to change X and Y to 100.00 each. Save, reboot, and then Home Y.

              fcwiltundefined 1 Reply Last reply Reply Quote 0
              • fcwiltundefined
                fcwilt @A Former User
                last edited by

                @mac said in I could use some help:

                @fcwilt Okay, I'm going to change X and Y to 100.00 each. Save, reboot, and then Home Y.

                Fingers still crossed.

                Frederick

                Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                A Former User? 1 Reply Last reply Reply Quote 0
                • A Former User?
                  A Former User @fcwilt
                  last edited by

                  @fcwilt Okay, Y started out very slowly, and went towards HOME (the rear of the printer), but stopped 89mm from the end-stop.

                  I'm sorry, Frederick, it's just not happening.

                  fcwiltundefined 1 Reply Last reply Reply Quote 0
                  • fcwiltundefined
                    fcwilt @A Former User
                    last edited by

                    @mac said in I could use some help:

                    @fcwilt Okay, Y started out very slowly, and went towards HOME (the rear of the printer), but stopped 89mm from the end-stop.

                    I'm sorry, Frederick, it's just not happening.

                    And yet jogging Y is now yielding correct distances?

                    Frederick

                    Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                    A Former User? 1 Reply Last reply Reply Quote 0
                    • A Former User?
                      A Former User @fcwilt
                      last edited by

                      @fcwilt The nozzle is 51mm west of the front of the bed (the back of the printer is pointed west).

                      A Former User? fcwiltundefined 2 Replies Last reply Reply Quote 0
                      • A Former User?
                        A Former User @A Former User
                        last edited by

                        @fcwilt I haven't tried to find that out yet. I'll do that now.

                        1 Reply Last reply Reply Quote 0
                        • fcwiltundefined
                          fcwilt @A Former User
                          last edited by

                          @mac said in I could use some help:

                          @fcwilt The nozzle is 51mm west of the front of the bed (the back of the printer is pointed west).

                          OK back to my previous question.

                          With the new value of 100 are Y movements done via jogging moving the correct distances?

                          Frederick

                          Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                          A Former User? 1 Reply Last reply Reply Quote 0
                          • A Former User?
                            A Former User @fcwilt
                            last edited by

                            @fcwilt I have an American tape measure going from the front of the printer to the back rail, where it's hooked on to the back rail. What I'm doing is bringing the adjustment wheel for the left corner of the bed to 10 inches. I just watched the bed move from 10 inches to 12 inches twice. So the bed travelled back and forth 51mm twice.

                            A Former User? fcwiltundefined 2 Replies Last reply Reply Quote 0
                            • A Former User?
                              A Former User @A Former User
                              last edited by

                              @fcwilt they appear to be consistent.

                              A Former User? fcwiltundefined 2 Replies Last reply Reply Quote 0
                              • A Former User?
                                A Former User @A Former User
                                last edited by

                                @fcwilt okay, I did a test. I clicked on Y-50 twice. That took the rear of the bed to the endstop (it hit it, versus touching it and backing away).

                                fcwiltundefined 1 Reply Last reply Reply Quote 0
                                • fcwiltundefined
                                  fcwilt @A Former User
                                  last edited by

                                  @mac said in I could use some help:

                                  @fcwilt I have an American tape measure going from the front of the printer to the back rail, where it's hooked on to the back rail. What I'm doing is bringing the adjustment wheel for the left corner of the bed to 10 inches. I just watched the bed move from 10 inches to 12 inches twice. So the bed travelled back and forth 51mm twice.

                                  I don't care about homing Y right now because we know it is not working.

                                  I need to be sure that Y movements done via jogging are now moving the correct distances.

                                  Once that is assured the next step will be to determine if the current min/max limits for the Y axis are correct.

                                  Why? Because I based my Y homing code on them. If they are wrong the homing code is wrong and will not work.

                                  Frederick

                                  Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                                  A Former User? 1 Reply Last reply Reply Quote 0
                                  • fcwiltundefined
                                    fcwilt @A Former User
                                    last edited by

                                    @mac said in I could use some help:

                                    @fcwilt they appear to be consistent.

                                    What appear to be consistent?

                                    Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

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                                    • A Former User?
                                      A Former User @fcwilt
                                      last edited by

                                      @fcwilt I'm looking at the Status window? Y is currently at 34.5.

                                      A Former User? fcwiltundefined 2 Replies Last reply Reply Quote 0
                                      • A Former User?
                                        A Former User @A Former User
                                        last edited by A Former User

                                        @fcwilt I just moved the bed FORWARDS. Y is now at 124.5.

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                                        • fcwiltundefined
                                          fcwilt @A Former User
                                          last edited by

                                          @mac said in I could use some help:

                                          @fcwilt okay, I did a test. I clicked on Y-50 twice. That took the rear of the bed to the endstop (it hit it, versus touching it and backing away).

                                          Where did the test start from? The fact that -100 took the rear of the bed to the endstop tells us nothing without knowing where the bed started from.

                                          Frederick

                                          Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                                          A Former User? 1 Reply Last reply Reply Quote 0
                                          • fcwiltundefined
                                            fcwilt @A Former User
                                            last edited by fcwilt

                                            @mac said in I could use some help:

                                            @fcwilt I'm looking at the Status window? Y is currently at 34.5.

                                            You cannot trust those numbers until you are absolutely sure the 100 is the correct value for Y in M92.

                                            If M92 values are off everything the printer "says" and does will be off.

                                            Frederick

                                            Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                                            1 Reply Last reply Reply Quote 0
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