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Triangular wave and print area

Scheduled Pinned Locked Moved
Duet Hardware and wiring
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  • undefined
    Leblond
    last edited by 25 Oct 2020, 18:35

    ok, I'll call you hawkeye, correct and take the test again

    1 Reply Last reply Reply Quote 1
    • undefined
      Leblond
      last edited by 25 Oct 2020, 18:38

      25/10/2020, 19:37:22 G32 bed probe heights: 0.190 0.198 0.195 0.195 0.192 0.192 0.190 0.195 0.188 0.192, mean 0.193, deviation from mean 0.003
      25/10/2020, 19:36:52 G32 bed probe heights: 0.195 0.195 0.192 0.202 0.212 0.208 0.205 0.200 0.200 0.198, mean 0.201, deviation from mean 0.006
      25/10/2020, 19:36:22 G32 bed probe heights: 0.188 0.178 0.178 0.178 0.178 0.178 0.173 0.178 0.183 0.180, mean 0.179, deviation from mean 0.004
      25/10/2020, 19:35:52 M98 P"0:/macros/Calibrazione a punto singolo/Calibrazione x 10"
      G32 bed probe heights: 0.190 0.192 0.192 0.195 0.190 0.185 0.190 0.188 0.188 0.190, mean 0.190, deviation from mean 0.003

      1 Reply Last reply Reply Quote 0
      • undefined
        Veti
        last edited by 25 Oct 2020, 18:41

        ok that looks good.

        now do the test again, grab the hotend carriage and turn on clockwise and anticlockwise between probes. dont force it but do it gently.

        after that do it again trying to rotate it forwards and backwards.

        1 Reply Last reply Reply Quote 0
        • undefined
          Leblond
          last edited by 25 Oct 2020, 18:53

          in practice I take the trolley and manually try to move it and then I do the tests again, did I understand correctly?

          undefined 1 Reply Last reply 25 Oct 2020, 18:55 Reply Quote 0
          • undefined
            Veti @Leblond
            last edited by 25 Oct 2020, 18:55

            @Leblond
            yes. we are looking for backlash in the assembly. movement could cause the assembly to rotate and cause the result you are seeing.

            1 Reply Last reply Reply Quote 0
            • undefined
              Leblond
              last edited by 25 Oct 2020, 18:58

              25/10/2020, 19:57:24 G32 bed probe heights: 0.192 0.195 0.190 0.192 0.192 0.192 0.190 0.190 0.190 0.190, mean 0.191, deviation from mean 0.002
              25/10/2020, 19:56:50 G32 bed probe heights: 0.183 0.185 0.180 0.185 0.185 0.183 0.183 0.183 0.185 0.183, mean 0.183, deviation from mean 0.002
              25/10/2020, 19:56:17 G32 bed probe heights: 0.168 0.168 0.168 0.173 0.170 0.165 0.170 0.170 0.170 0.170, mean 0.169, deviation from mean 0.002
              25/10/2020, 19:55:43 M98 P"0:/macros/Calibrazione a punto singolo/Calibrazione x 10"
              G32 bed probe heights: 0.183 0.185 0.183 0.185 0.185 0.185 0.183 0.185 0.185 0.183, mean 0.184, deviation from mean 0.001

              1 Reply Last reply Reply Quote 0
              • undefined
                Veti
                last edited by 25 Oct 2020, 19:08

                M906 X800 Y800 Z800 E800 I30 ; set motor currents (mA) and motor idle factor in per cent

                there are default values from the configurator.

                a quick google shows the motors seem to be 1,68 A motors

                so you are running way to little current. try 1300

                1 Reply Last reply Reply Quote 0
                • undefined
                  Leblond
                  last edited by 25 Oct 2020, 19:49

                  The motors are Quimat Nema 17 Stepper Motor 1.7 A 0.59 Nm 84 oz.in 47mm

                  undefined 1 Reply Last reply 25 Oct 2020, 19:51 Reply Quote 0
                  • undefined
                    Veti @Leblond
                    last edited by 25 Oct 2020, 19:51

                    @Leblond said in Triangular wave and print area:

                    1.7 A

                    so running them at 75% rounding to nearest 100 is 1300.

                    1 Reply Last reply Reply Quote 0
                    • undefined
                      Leblond
                      last edited by 25 Oct 2020, 19:54

                      ok I took them to 1.3 and I'm doing the test again later

                      1 Reply Last reply Reply Quote 0
                      • undefined
                        Leblond
                        last edited by 25 Oct 2020, 19:56

                        25/10/2020, 20:56:11 G32 bed probe heights: 0.198 0.195 0.195 0.198 0.195 0.200 0.195 0.200 0.192 0.195, mean 0.196, deviation from mean 0.002
                        25/10/2020, 20:55:37 G32 bed probe heights: 0.183 0.180 0.180 0.183 0.183 0.183 0.183 0.180 0.180 0.183, mean 0.181, deviation from mean 0.001
                        25/10/2020, 20:55:04 G32 bed probe heights: 0.183 0.178 0.173 0.170 0.178 0.173 0.173 0.178 0.178 0.173, mean 0.175, deviation from mean 0.004
                        25/10/2020, 20:54:31 M98 P"0:/macros/Calibrazione a punto singolo/Calibrazione x 10"
                        G32 bed probe heights: 0.195 0.192 0.192 0.195 0.192 0.195 0.195 0.195 0.188 0.195, mean 0.194, deviation from mean 0.002

                        1 Reply Last reply Reply Quote 0
                        • undefined
                          Leblond
                          last edited by 25 Oct 2020, 19:57

                          I'm retrying cold-meshing the plate to see if we've made any improvements

                          1 Reply Last reply Reply Quote 0
                          • undefined
                            Leblond
                            last edited by 25 Oct 2020, 20:06

                            20x20 temperatura ambiente_secondo tentativo.jpg

                            1 Reply Last reply Reply Quote 0
                            • undefined
                              Leblond
                              last edited by 25 Oct 2020, 20:08

                              no improvement

                              1 Reply Last reply Reply Quote 0
                              • undefined
                                Veti
                                last edited by 26 Oct 2020, 05:07

                                it seems to be very consistent.

                                can you turn the glass 90 degrees?

                                undefined 1 Reply Last reply 26 Oct 2020, 20:56 Reply Quote 0
                                • undefined
                                  OwenD
                                  last edited by 26 Oct 2020, 07:49

                                  Is the X carriage on wheels?
                                  I'm not familiar with the printer and can't tell from the photos I've seen,
                                  Almost looks like an eccentric wheel causing the nozzle to rise & fall with each rotation

                                  1 Reply Last reply Reply Quote 0
                                  • undefined
                                    Leblond
                                    last edited by 26 Oct 2020, 12:13

                                    20201026_131106.jpg
                                    20201026_131116.jpg

                                    1 Reply Last reply Reply Quote 0
                                    • undefined
                                      Leblond
                                      last edited by 26 Oct 2020, 12:14

                                      Yes, the trolley is on rails and has eccentrics

                                      undefined 1 Reply Last reply 26 Oct 2020, 20:58 Reply Quote 0
                                      • undefined
                                        peter247 @Leblond
                                        last edited by 26 Oct 2020, 12:44

                                        @Leblond

                                        level 3.png

                                        I've had the same problem once , it was the x axis wheels and stopped the ripple with linear rails , but I guess getting better would have fixed it too.

                                        Ender 5 plus linear rail and hemera powered by duet 2 wifi , CR10s pro v1 with bltouch mostly stock , BLV mgn Cube slowly being built powered by duet 3 mini 5+

                                        undefined 1 Reply Last reply 26 Oct 2020, 20:58 Reply Quote 0
                                        • undefined
                                          Leblond @Veti
                                          last edited by 26 Oct 2020, 20:56

                                          @Veti yes I have already tried to rotate it 90 degrees, but no improvement

                                          1 Reply Last reply Reply Quote 0
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