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Thoughts on this low cost linear actuator

Discussion in 'Motor actuators and drivers' started by Spit40, Jul 4, 2017.

  1. Spit40

    Spit40 VR Flyer

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    This looks like a bargain. 6 of these would be very reasonable for a 6dof. Thoughts? I've asked the seller about the optional hall sensor they refer to. My interest would be for flying so doesn't need to be as heavy duty as for driving.

    http://www.ebay.co.uk/itm/Linear-Ac...056872&hash=item1c863b4a66:g:7uIAAOSwiONYL6tQ
    Spit40, Jul 4, 2017
    #1
  2. adgun

    adgun Active Member

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    you need minimal 150 mm second
    • Agree Agree x 1
    adgun, Jul 4, 2017
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  3. Spit40

    Spit40 VR Flyer

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    Thanks! Unless I DIY I guess SCN5's are still the best option then.
    Spit40, Jul 4, 2017
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  4. adgun

    adgun Active Member

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    No scn5 are 10kg max
    far to week
    DIY actuators are cheap
    stong and fast actuators are expensife
    • Agree Agree x 1
    • Informative Informative x 1
    adgun, Jul 4, 2017
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  5. mariano68

    mariano68 Active Member

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    mariano68, Jul 4, 2017
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  6. Spit40

    Spit40 VR Flyer

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    Spit40, Jul 4, 2017
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  7. mariano68

    mariano68 Active Member

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    I'm not the OP of that thread
    Ask @agroum
    mariano68, Jul 5, 2017
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  8. Spit40

    Spit40 VR Flyer

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    thanks. Will do!
    Spit40, Jul 5, 2017
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  9. Spit40

    Spit40 VR Flyer

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    Just thinking this through more, most of the 6DOF builds I see here are pretty big affairs with I guess around 200cm between the tops of the actuators. As its all a case of angles, if I built something more compact at the top, say 80cm across, that would amplify the movement. Do you think such a design would then work with 80mm/sec actuators or was your 150mm/s based on a smaller setup anyway? I'm estimating an 80cm seat base lifted 80mm in one corner and dropped 80mm in the opposite corner would be around 12 degrees movement in a second, but I just don't know if that would feel responsive enough. I'm wondering if it might work for a light aircraft for example, but perhaps not a fast jet. Are there resources here which go into this more?
    Spit40, Jul 13, 2017
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  10. adgun

    adgun Active Member

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    Hi
    As fas i know there are no special recources for 6 dof
    12 degrees sec is slow, but 2 actuators fitted at one point lika a 6 dof becomes faster.
    It all in the angles, with a 200 mm stroke and 200mm/sec. actuator you can for axample create 250mm heave in a second
    regards Ad
    adgun, Jul 13, 2017
    #10
  11. perdixero

    perdixero Member

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    • Informative Informative x 1
    perdixero, Jul 24, 2017
    #11