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  3. self-made prop guard makes vibration

self-made prop guard makes vibration

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  • 張為超張 Offline
    張為超張 Offline
    張為超
    Contributor
    wrote on last edited by 張為超
    #1

    Since we were recently testing obstacle avoidance, we decided to add a prop guard for safety reasons. However, the prop guard looks good visually and also under payload limit, but it still cause vibrations to the seeker during flight.

    seeker with prop guard:
    313530931_1546056182494132_5038004374963999240_n.jpg
    313879527_5414043095361226_2929126801014034511_n.jpg

    flight video:
    https://drive.google.com/file/d/1wV5DB6gfX7z69zkYtiPf9roQN4AQPfnb/view?usp=share_link

    So my question is :

    1. Is there any chance to improve the vibration? Is there any chance that QGC calibration might solve this problem?
    2. Does ModalAI have plans to launch a set of prop guard for Seeker? Since Seeker is an indoor focused drone, a prop guard would be a nice add-on.

    I'm so sorry to ask a big question with less information. But I still looking forward some advice by any chance. Really appreciate.

    Amber Elaine ParkerA 1 Reply Last reply
    0
    • Chad SweetC Offline
      Chad SweetC Offline
      Chad Sweet
      ModalAI Team
      wrote on last edited by
      #2

      Since you changed the airframe, it looks like you just need to perform some PID tuning, please see the PX4 reference here

      1 Reply Last reply
      0
      • W Offline
        W Offline
        wxyLuna
        wrote on last edited by
        #3

        Is the prop guard 3D printed? I wonder which market-available prop guard can work on m500.

        1 Reply Last reply
        0
        • 張為超張 Offline
          張為超張 Offline
          張為超
          Contributor
          wrote on last edited by
          #4

          I think since m500 use s500 airframe so the prop guard for s500 should be work, just double check the guard is bigger than prop.

          1 Reply Last reply
          0
          • 張為超張 張為超

            Since we were recently testing obstacle avoidance, we decided to add a prop guard for safety reasons. However, the prop guard looks good visually and also under payload limit, but it still cause vibrations to the seeker during flight.

            seeker with prop guard:
            313530931_1546056182494132_5038004374963999240_n.jpg
            313879527_5414043095361226_2929126801014034511_n.jpg

            flight video:
            https://drive.google.com/file/d/1wV5DB6gfX7z69zkYtiPf9roQN4AQPfnb/view?usp=share_link

            So my question is :

            1. Is there any chance to improve the vibration? Is there any chance that QGC calibration might solve this problem?
            2. Does ModalAI have plans to launch a set of prop guard for Seeker? Since Seeker is an indoor focused drone, a prop guard would be a nice add-on.

            I'm so sorry to ask a big question with less information. But I still looking forward some advice by any chance. Really appreciate.

            Amber Elaine ParkerA Offline
            Amber Elaine ParkerA Offline
            Amber Elaine Parker
            wrote on last edited by
            #5

            @張為超 did you ever fix the vibration issue? and if so, did you do the PID tuning?

            C 1 Reply Last reply
            0
            • Amber Elaine ParkerA Amber Elaine Parker

              @張為超 did you ever fix the vibration issue? and if so, did you do the PID tuning?

              C Offline
              C Offline
              coreyazion
              Contributor
              wrote on last edited by
              #6

              @Amber-Elaine-Parker Yes we did resolve the issue following Chad's suggested direction

              Since you changed the airframe, it looks like you just need to perform some PID tuning, please see the PX4 reference here

              Amber Elaine ParkerA 1 Reply Last reply
              0
              • C coreyazion

                @Amber-Elaine-Parker Yes we did resolve the issue following Chad's suggested direction

                Since you changed the airframe, it looks like you just need to perform some PID tuning, please see the PX4 reference here

                Amber Elaine ParkerA Offline
                Amber Elaine ParkerA Offline
                Amber Elaine Parker
                wrote on last edited by
                #7

                @coreyazion Thank you so much. If you wouldn't mind, I'm attaching a video of what our drone is doing. Is this what yours was doing? We attached a light mount. Video

                C 1 Reply Last reply
                0
                • Amber Elaine ParkerA Amber Elaine Parker

                  @coreyazion Thank you so much. If you wouldn't mind, I'm attaching a video of what our drone is doing. Is this what yours was doing? We attached a light mount. Video

                  C Offline
                  C Offline
                  coreyazion
                  Contributor
                  wrote on last edited by coreyazion
                  #8

                  @Amber-Elaine-Parker I think our Seeker was doing something similar but it is a little bit difficult to identify because of the viewing angle of the video. I can't find our original video but our Seeker was oscillating around X-axis (FRD reference frame) like this:

                  f8e87bf6-de8a-49c8-9e6c-013bc6cba5f7-image.png

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