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    Endtops Low and High

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
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    • Synapsisundefined
      Synapsis
      last edited by

      Tried G1 then G1 X10 the head moves from left to right G1 X-10 moves the head from right to left
      Same for G1 Y10 moves from front to back G1 X-10 back to front. Starting from the left bottom.
      back
      Y
      |

      Top View

      |
      |
      0–-------------------- X
      front

      left motor was supposed to be Y while right X but had to switch them to get the correct movement when following the giude in
      Configuring RepRapFirmware for a CoreXY printer

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      • dc42undefined
        dc42 administrators
        last edited by

        Good, your axes are moving in the correct directions. Now set up your M574 command to specify whether each endstop switch is at the low (minimum) end or the high (maximum) end, set up the M208 commands to specify the upper and lower limits of each axis, and set up the homing files as described at https://duet3d.com/wiki/Configuring_RepRapFirmware_for_a_Cartesian_printer#Homing_files and https://duet3d.com/wiki/Configuring_RepRapFirmware_for_a_CoreXY_printer#Homing_files. You can use the online configuration tool to generate these commands if you wish.

        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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        • Synapsisundefined
          Synapsis
          last edited by

          Thanks David will do as soon as I get home. Wife made me take here to the beach wont be back until 02/01/18 ;(

          Well I can finally read up some documentation.

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          • Synapsisundefined
            Synapsis
            last edited by

            Finally back home tried setting up starts to act almost correctly but I need to know in Web Control Head Moviment
            does a +1 = 1 mm? when I do home X and Y when I go back to zero I see the position is 120 x 120 and not 0 x 0.
            I do have a 400mm + bed. Does i8t have something to do with the steppers settings?

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            • dc42undefined
              dc42 administrators
              last edited by

              Yes +1 should move the head 1mm in the +x direction, +10 should move it 10mm in the +X direction, and so on. If it moves the wrong amount, check the steps/mm settings, which are defined in the M92 command in config.g.

              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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              • Synapsisundefined
                Synapsis
                last edited by

                Hi David thanks and Yes I was reading the M92 command but how do I calculate the steps, right now I have 200 for all three.
                So I know its wrong but rather than trial and error if I know how it would be better- 🙂
                I have 0.9 stepper motors.

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                • dc42undefined
                  dc42 administrators
                  last edited by

                  1. How many teeth are there on the stepper motors pulleys? Are they GT2 pulleys and belts?

                  2. Is your G92 command before or after any M350 command that you have in config.g? if it is after, what M350 parameters are you using?

                  3. Are the motors 0.9deg or 1.8deg?

                  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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                  • Synapsisundefined
                    Synapsis
                    last edited by

                    @dc42:

                    1. How many teeth are there on the stepper motors pulleys? Are they GT2 pulleys and belts?
                    Yes have GT2 20 tooth pulleys and belts

                    2. Is your G92 command before or after any M350 command that you have in config.g? if it is after, what M350 parameters are you using?
                    I have a M92 X150 Y150 Z150 ; Set axis steps/mm was 200 I changed it to 150 but still not correct. I can not find a G92 command
                    M350 X16 Y16 Z16 E16 I1 ; Set 16x microstepping with interpolation

                    3. Are the motors 0.9deg or 1.8deg?

                    0.9deg stepper motors

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                    • dc42undefined
                      dc42 administrators
                      last edited by

                      Sorry, I meant M92 not G92. For 20 tooth GT2 pulleys and 0.9deg motors, steps/mm should be 160 on X and Y.

                      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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                      • Synapsisundefined
                        Synapsis
                        last edited by

                        Thanks Davis will change now and try it-

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