1. Do not share user accounts! Any account that is shared by another person will be blocked and closed. This means: we will close not only the account that is shared, but also the main account of the user who uses another person's account. We have the ability to detect account sharing, so please do not try to cheat the system. This action will take place on 04/18/2023. Read all forum rules.
    Dismiss Notice
  2. For downloading SimTools plugins you need a Download Package. Get it with virtual coins that you receive for forum activity or Buy Download Package - We have a zero Spam tolerance so read our forum rules first.

    Buy Now a Download Plan!
  3. Do not try to cheat our system and do not post an unnecessary amount of useless posts only to earn credits here. We have a zero spam tolerance policy and this will cause a ban of your user account. Otherwise we wish you a pleasant stay here! Read the forum rules
  4. We have a few rules which you need to read and accept before posting anything here! Following these rules will keep the forum clean and your stay pleasant. Do not follow these rules can lead to permanent exclusion from this website: Read the forum rules.
    Are you a company? Read our company rules

Question 6DOF with servomotors for flight sim in VR

Discussion in 'DIY Motion Simulator Projects' started by dureiken, Aug 4, 2017.

  1. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    the other problem of my rig is that I only have 200cm between ground and top in my room

    I made a design like this but I really don't like :

    [​IMG]
  2. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    Hi,

    I am going back to wormdrive for now.

    I would like 400mm heave, 120° of motor rotation, 6DOF, 35° pitch/roll

    [​IMG]

    In term of angle :


    [​IMG]



    What gives me 450 for platform radius :


    Mobile :



    [​IMG]


    Fix :


    [​IMG]



    In a vertical plan (trying 2D before 3D), does the neutral position should be like this :

    [​IMG]


    Or should I put the axis of fixation at the middle of lever, like this ?


    [​IMG]


    I think I'm wrong because after having done all of this, I only have 15° of roll :(



    [​IMG]
    Thanks for your help guys !
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    20,463
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    144,614Coins
    Ratings:
    +10,741 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Others with 6DOF rigs like @SeatTime and @SilentChill are better placed to comment, but I would think 35 degrees excessive.
    • Agree Agree x 1
  4. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    BTW I only have 15° lol
  5. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    Hi

    do this kind of actuator work ? or is there something wrong ? (except there is no screw ball and gear between motor and screw ball !

    [​IMG]

    [​IMG]

    [​IMG]


    Thanks
    • Like Like x 1
  6. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    Hi guys,

    is that a problem if my seat is not at the center of rotation ?

    [​IMG]

    because of problem of room size, I have to put the seat down of 350mm and back of 330mm.

    Will it change the movment perception in bad terms ?

    Or is that a problem for gravity center ?

    Thanks a lot
  7. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    Hi,

    project keeps going !

    [​IMG]

    30° pitch and roll, 70° yaw

    [​IMG] [​IMG]

    400mm for/back and left/right and 500mm Heave

    [​IMG] [​IMG]

    Do you know where I could find a seat where I can put my warthog joystick between my legs ?

    And where to find gear wheel ? with chain ? would it be able to transmit 750w ?

    thanks
    • Like Like x 2
  8. Zed

    Zed VR Simming w/Reverb Gold Contributor

    Joined:
    Apr 4, 2017
    Messages:
    1,044
    Location:
    USA
    Balance:
    5,828Coins
    Ratings:
    +1,042 / 4 / -0
    My Motion Simulator:
    2DOF, DC motor, JRK
    • Like Like x 1
  9. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    Thanks

    is there a way to have one with an angle ?



    [​IMG]

    [​IMG]



    et imprimer des parts :

    [​IMG]
  10. momoclic

    momoclic Active Member

    Joined:
    Sep 23, 2014
    Messages:
    215
    Occupation:
    Retraité
    Location:
    Nantes - France
    Balance:
    2,761Coins
    Ratings:
    +115 / 1 / -0
    My Motion Simulator:
    DC motor, Arduino
    at5 belts are more suitable, much less noisy and smooth!
  11. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    I wil go with AT3 or AT5 thanks a lot

    is 0.5m/s and 60°/sec good specs for VR ?

    Thanks
  12. mariano68

    mariano68 Active Member

    Joined:
    Nov 15, 2014
    Messages:
    577
    Occupation:
    builder contractor
    Location:
    Argentina
    Balance:
    3,338Coins
    Ratings:
    +395 / 2 / -0
    My Motion Simulator:
    2DOF, Arduino, 4DOF
    500mm/sec it's a lot! (and difficult to achieve)
    Nice actuator design, I have a similar but a little more radical design in mind if my more simplistic design fails this week.
  13. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    thanks

    where is your design ? :)
  14. mariano68

    mariano68 Active Member

    Joined:
    Nov 15, 2014
    Messages:
    577
    Occupation:
    builder contractor
    Location:
    Argentina
    Balance:
    3,338Coins
    Ratings:
    +395 / 2 / -0
    My Motion Simulator:
    2DOF, Arduino, 4DOF
    WhatsApp Image 2017-10-07 at 10.30.05 AM.jpeg Dual ball bearing nut in the upper free floating part to keep it center...
  15. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    What is your motor ? and linear spec ?
  16. mariano68

    mariano68 Active Member

    Joined:
    Nov 15, 2014
    Messages:
    577
    Occupation:
    builder contractor
    Location:
    Argentina
    Balance:
    3,338Coins
    Ratings:
    +395 / 2 / -0
    My Motion Simulator:
    2DOF, Arduino, 4DOF
  17. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    Hi guys,

    still not dead, project keep goes up ! @wannabeaflyer reboosts me a lot !

    Under fusion360 :

    [​IMG]

    [​IMG]
    Screw lenght : 550mm, total travel : 480mm

    And hardware in real :

    [​IMG]


    I have a problem : the ball screw nut is in the wrong side compared to machined size, can I remove it and reverse it ?

    [​IMG]


    What do you think of my design ? @SeatTime @wannabeaflyer @baykah @Hoddem @noorbeast

    Thanks a lot :)
    • Like Like x 1
    Last edited: Nov 28, 2017
  18. dureiken

    dureiken Active Member

    Joined:
    Sep 28, 2016
    Messages:
    239
    Location:
    France
    Balance:
    1,176Coins
    Ratings:
    +165 / 2 / -0
    not a lot of help round there :(
  19. mariano68

    mariano68 Active Member

    Joined:
    Nov 15, 2014
    Messages:
    577
    Occupation:
    builder contractor
    Location:
    Argentina
    Balance:
    3,338Coins
    Ratings:
    +395 / 2 / -0
    My Motion Simulator:
    2DOF, Arduino, 4DOF
    You can unscrew it, but you need a piece of tube of the same size of the screw, or a printed screw.
    • Informative Informative x 1
  20. mariano68

    mariano68 Active Member

    Joined:
    Nov 15, 2014
    Messages:
    577
    Occupation:
    builder contractor
    Location:
    Argentina
    Balance:
    3,338Coins
    Ratings:
    +395 / 2 / -0
    My Motion Simulator:
    2DOF, Arduino, 4DOF