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Greetings, 6-dof with 6 stage axis instead of hexapod

Discussion in 'New users start here - FAQ' started by MrHodeifa, Jul 7, 2017.

  1. MrHodeifa

    MrHodeifa New Member

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    My Motion Simulator:
    AC motor, 6DOF
    Hi All,
    My name is Hodeifa, I am from Indonesia. Currently I am still looking around
    of my build concept. My usage plan is for car racing and roller coaster.

    Only from a brief visual observation, currently I am not quite happy with 6-dof
    hexapod build, because I feel it can't give enough rotational movement especially
    for playing roller coaster. But once again this is only from my visual observation.

    After looking forward, I felt 6dof with 6 stage axis seems promising because each
    degree moves independently that can result more movement in each axis.

    Unfortunately I can't find anyone implement 6 stage axis for big load. One way I
    feel it should be an exiting concept but on the other hand has a high risk. Probably
    anyone can share opinion about this.

    Cheers
    Last edited: Jul 7, 2017
    MrHodeifa, Jul 7, 2017
    #1
  2. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
    AC motor, Motion platform
    Hi @MrHodeifa , what is a 6DOF with 6 stage axis? Maybe a drawing/diagram of what you are planning to build may help members understand and give an opinion.
    • Agree Agree x 2
    SeatTime, Jul 8, 2017
    #2
  3. MrHodeifa

    MrHodeifa New Member

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    Dear All,
    This is the idea taken from a small model. Just need to upscale :o:. 6stageaxis.jpg
    MrHodeifa, Jul 10, 2017
    #3
  4. RandomCoder

    RandomCoder Active Member Gold Contributor

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    You will need very strong actuators as each one is carrying all of the weight. With a hexapod design the weight is shared.
    RandomCoder, Jul 10, 2017
    #4
  5. MrHodeifa

    MrHodeifa New Member

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    My Motion Simulator:
    AC motor, 6DOF
    Yes, I realized that. I will need power mostly for vertical movement (Heave), meanwhile for horizontal and other movement I will not need that much power (Just my rough assumption).

    I am counting that to make 25 cm/s of heave of 300kg of load it will take 1 hp (750 watt) CMIIW.
    I might be only using half of it, 12.5 cm/s, is this enough?
    MrHodeifa, Jul 10, 2017
    #5
  6. RandomCoder

    RandomCoder Active Member Gold Contributor

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    I think that what you really need is one of these or similar...
    RandomCoder, Jul 10, 2017
    #6
  7. MrHodeifa

    MrHodeifa New Member

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    My Motion Simulator:
    AC motor, 6DOF
    Thanks for the video, it gives me an idea to go further, btw, finally I found something realistic for me.

    • Agree Agree x 1
    Last edited: Jul 10, 2017
    MrHodeifa, Jul 10, 2017
    #7
  8. RandomCoder

    RandomCoder Active Member Gold Contributor

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    I've watched a lot of videos of different types of simulator and yet this is the first time I've seen the simulator you've linked above. Pretty interesting design!
    RandomCoder, Jul 10, 2017
    #8
  9. MrHodeifa

    MrHodeifa New Member

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    My Motion Simulator:
    AC motor, 6DOF
    Imagine if we could add x,y,z axis underneath :grin.

    Something like scissor table as z axis, and skateboard with guided rail as x & y axis.
    MrHodeifa, Jul 11, 2017
    #9