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Cheap actuator design

Discussion in 'Motor actuators and drivers' started by Pit, Jan 8, 2017.

  1. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    https://m.de.aliexpress.com/s/item/548535303.html

    [​IMG]
    The motor is weak but could be replaced by an other one.
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    Pit, Jan 8, 2017
    #1
  2. SeatTime

    SeatTime Well-Known Member

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    But why.. o_O.
    SeatTime, Jan 8, 2017
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  3. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    IMHO the design of the actuator above is pretty interesting, cheap and clean - I shared the link if someone is looking for an easy "p&p" seat shaker system.

    PS: the video on Aliexpress is very promising.
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    Last edited: Jan 8, 2017
    Pit, Jan 8, 2017
    #3
  4. SeatTime

    SeatTime Well-Known Member

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    I understand your motives, but for anyone wanting to use something like this please be aware that it will just add complexity/weight for no gain in efficiency/resolution over a standard rod with two rod ends as you are still using a motor with a worm drive gearbox to drive this :).
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    SeatTime, Jan 8, 2017
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  5. obobo

    obobo Active Member

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    In my opinion, this can bring a significant gain to the engine / ball rod.

    Vertical installation and movements without interference
    Ease of adding support points to increase DOF or gain reactivity

    To fit a G-seat
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    obobo, Jan 8, 2017
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  6. misoswan

    misoswan Active Member

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    misoswan, Jan 8, 2017
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  7. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    IMO not so "strong" due to the lack of power of the motor. They also deliver more powerful motors you could ask them if you need more information.
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    Pit, Jan 8, 2017
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  8. misoswan

    misoswan Active Member

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    i think it is good idea ...change this for diy linear actuator

    Attached Files:

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    misoswan, Jan 8, 2017
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  9. cfischer

    cfischer Active Member Gold Contributor

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    But like seat time said you dont gain anything. Your motion is still coming from a lever on a shaft. So you dont have a linear response even if the rod end moves in a straight line.

    You add more mass to move and more friction to push through as well as paying more for parts that are useless and redundant.

    The only thing this actuator does different is constrain the ball end to a straight line. Most sim designs here (including a g seat) dont need motion constrained to a straight line. In fact its problematic. This actuator would need to have an extra joint where its connected to the base. If you stick with the typical motor/lever the connecting rod from the lever to the seat takes care of this.
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    cfischer, Jan 8, 2017
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  10. mariano68

    mariano68 Active Member

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    mariano68, Jan 9, 2017
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  11. Gadget999

    Gadget999 Well-Known Member

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    Gadget999, Sep 7, 2017
    #11