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[not yet solved] Tevo Little Monster DuetWifi errors

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My Duet controlled machine
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  • undefined
    dc42 administrators
    last edited by 7 Feb 2019, 12:58

    My guess is that you have a Z probe that is offset from the nozzle and you have a geometrical error that causes the effector tilt to vary with XY position. This causes the apparent trigger height of the Z probe to vary with XY position. It's possible to correct for this using H parameters on the G30 commands in bed.g, but tedious.

    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
      RafB
      last edited by 12 Feb 2019, 16:23

      I will try to control all these points but it is not obvious to be precise. By the way, what is the order of magnitude XX.XXXmm?
      0_1549987197649_Capture d’écran 2019-02-12 à 16.55.57.png

      When I do my calibrated to find the value G31 ZX and that I launch my impression I always 0.20mm too high. So I change the value of G31 Z0.687 + 0.20 to have a 1st layer that hangs and rotates between 0.25 and 0.35mm.

      I controlled the distances between the top of the printer and a point of the carts that had different values. I now have about 4cm everywhere I will try to do this with the caliper.

      0_1549988240122_IMG_0730.jpg
      But it did not really change the quality of my first layer (Nozzle 0.8mm)
      0_1549988404178_IMG_3005.jpg

      L'imprimante
      0_1549988575449_IMG_3451.jpg

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      • undefined
        RafB
        last edited by 13 Feb 2019, 09:14

        dc42
        what should be changed as parts to solve this problem of geometry?

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        • undefined
          boldnuts
          last edited by 13 Feb 2019, 09:25

          Try this guide and join this TLM group, https://www.facebook.com/groups/TEVO.Monster.Delta.Owners/

          0_1550049851528_TLM Ultimate Calibration Tutorial (1).pdf

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          • undefined
            RafB
            last edited by 13 Feb 2019, 19:25

            I thank you, I will study with precision.

            1 Reply Last reply Reply Quote 0
            • undefined
              RafB
              last edited by 15 Feb 2019, 16:54

              0_1550249541696_file-4.jpeg

              Hello,
              I just control the angle of the towers and I do not have the same exactly the same value. This can be my geometry problem?
              I will now control the length of my Delta Diagonal Rod

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              • undefined
                dc42 administrators
                last edited by 15 Feb 2019, 17:34

                Auto calibration will sort out the tower angles for you.

                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
                  RafB
                  last edited by 17 Feb 2019, 11:23

                  I think it would be complementary to bring illustrations and or videos to the Duet manual on the essential control points of a perfect machine calibration. Especially for the illiterate technicians like me.

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                  • undefined
                    RafB
                    last edited by 17 Feb 2019, 11:32

                    I still do not understand the procedure of calibrating a delta with Duet but I will not give up. how to disable auto calibration? I think I can have a 1st more homogeneous without the self calibration. I checked everything manually and my tray with borosilicate glass is really flat.

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                    • undefined
                      RafB
                      last edited by 17 Feb 2019, 22:48

                      My geometry problem may come from this problem (see video)
                      When I make a home and I go back 5mm to put out the leds of the endstops I always have an endstop that stays on.
                      I change endstop, screwed to racemess and unscrewed to lengthen the head of the screw, set the ten micro to have exactly the same distance between the three cart and the problem is the same, the led remains lit while the trolley is perfectly in front of the optical fork. When I push the cart slightly, the led goes out.

                      Can you help me understand this problem?

                      https://www.icloud.com/iclouddrive/0od7VaaViYMMcV5_HiBiwm8dA#IMG_5224

                      0_1550443636198_IMG_3346.jpg

                      0_1550443662405_IMG_9301.jpg

                      undefined 1 Reply Last reply 18 Feb 2019, 15:55 Reply Quote 0
                      • undefined
                        synergy41
                        last edited by 18 Feb 2019, 05:02

                        Hello,
                        I have exactly the same problem as you.
                        I have an identical printer is impossible to turn off the limit switches,

                        I LOVE MY DUET WIFI

                        Board: Duet 2 WiFi (2WiFi)
                        Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.1 (2022-06-01)
                        Duet WiFi Server Version: 1.26
                        Duet Web Control 3.4.1

                        Cura 4.10

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                        • undefined
                          RafB
                          last edited by 18 Feb 2019, 12:01

                          Tu es Français non?
                          Tu as une couche de hauteur homogène avec ta TLM?

                          you have a 1st layer of uniform height with your TLM?

                          undefined 1 Reply Last reply 18 Feb 2019, 16:37 Reply Quote 0
                          • undefined
                            Stephen6309 @RafB
                            last edited by 18 Feb 2019, 15:55

                            @rafb Paint the flags with something that IR doesn't go through. Many plastics are transparent to IR.

                            undefined 1 Reply Last reply 18 Feb 2019, 16:39 Reply Quote 0
                            • undefined
                              synergy41 @RafB
                              last edited by 18 Feb 2019, 16:37

                              @rafb
                              Oui je suis bien Français...
                              Pour la 1er couche c'est pas trop mal à condition que je n'imprime pas quelque chose qui est une trop grande surface

                              I LOVE MY DUET WIFI

                              Board: Duet 2 WiFi (2WiFi)
                              Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.1 (2022-06-01)
                              Duet WiFi Server Version: 1.26
                              Duet Web Control 3.4.1

                              Cura 4.10

                              undefined 1 Reply Last reply 18 Feb 2019, 17:06 Reply Quote 0
                              • undefined
                                RafB @Stephen6309
                                last edited by 18 Feb 2019, 16:39

                                @stephen6309 Hi, thank you for your proposal but it is a screw without black head

                                undefined 2 Replies Last reply 18 Feb 2019, 16:59 Reply Quote 0
                                • undefined
                                  Dougal1957 @RafB
                                  last edited by 18 Feb 2019, 16:59

                                  This post is deleted!
                                  1 Reply Last reply Reply Quote 0
                                  • undefined
                                    Dougal1957 @RafB
                                    last edited by 18 Feb 2019, 17:01

                                    @rafb sounds like you need to make it wider so that it definitely blocks the IR on the Endstops sitches

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                                    • undefined
                                      RafB @synergy41
                                      last edited by 18 Feb 2019, 17:06

                                      @synergy41 Ça m’a fait tilt quand tu as mis le lien les imprimantes 3D.
                                      Je pense pas que le problème vienne Du réglage de la mécanique. J’ai tout réglé au pied à coulisse. Je vais l’installer micromètre À la place du hotend Et vérifier la planéité du plateau. Si tout est parfaitement plat, je ferai une vidéo et demanderai de l’aide à dc 42 pour comprendre d’où vient le problème. Qu’en penses-tu as-tu d’autres propositions?

                                      undefined 1 Reply Last reply 18 Feb 2019, 19:10 Reply Quote 0
                                      • undefined
                                        synergy41 @RafB
                                        last edited by 18 Feb 2019, 19:10

                                        @rafb I think at home my tray is not really Top Top.
                                        I have to find a glass to try to see if I can print a larger area.
                                        What annoys me the most is the problem of limit stop.

                                        I LOVE MY DUET WIFI

                                        Board: Duet 2 WiFi (2WiFi)
                                        Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.1 (2022-06-01)
                                        Duet WiFi Server Version: 1.26
                                        Duet Web Control 3.4.1

                                        Cura 4.10

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                                        • undefined
                                          RafB
                                          last edited by 18 Feb 2019, 22:17

                                          yes the problem of endstop optical is a known problem with the duet. This is probably what leads to the problem of geometry and therefore the impossibility of having a suitable first layer. I have a borosilicate glass and I use a Thickness Gage to adjust the space between my nozzle and the boro glass bed. My bed is on 3 spring.
                                          I really have a hard time understanding? Having a 350mm bed to print pieces of max 100mm drives me crazy !!

                                          undefined 1 Reply Last reply 19 Feb 2019, 14:34 Reply Quote 0
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