1. 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 Download Package Now!
  2. 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
  3. 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 here. Do not following these rules will lead to permanent exclusion from this website: Read the forum rules.

Starting a classical 2DOF Arduino/Sabertooth/24V DC

Discussion in 'DIY Motion Simulator Projects' started by vthinsel, Feb 26, 2015.

  1. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    Humm. Good spot. Looks like the chicken and egg problem. it should go through a charger instead of directly the battery maybe. Better idea: switch to sabertooh 2*32 :roll
    Any hints on the resistor to use to sink the current ? ohm/watt ?
    Thanks.
  2. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    After having spent some weeks on the arduino stuff, I'm back on the motion rig topic. I made a first draft using sketchup based on @RacingMat rig , using 40x20 metal. Something like that:
    [​IMG]

    I then realized I needed something adjustable for the kids :p
    Making the seat asjustable would be too much complicated for the gravity center, so it is the steering wheel that will need to move. So I found out the pieces must go ont into the other. I'm thinking of going for a 30x30 2mm thick with a 25*25 going into it and secured with welded nuts and bolts. This leaves 1mm to slide them one into the other. This will require the structure to be absolutely parallel. Any good advice to make sure it is parallel when ssembling ?
    I'll post more pictures soon, once I have converted the current structure to 30x30 and 25x25
  3. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

    Joined:
    Jul 13, 2014
    Messages:
    13,544
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    102,194Coins
    Ratings:
    +8,497 / 42 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    • Informative Informative x 1
    Last edited: Apr 14, 2015
  4. Wanegain

    Wanegain Active Member

    Joined:
    Nov 6, 2013
    Messages:
    549
    Location:
    Bruxelles
    Balance:
    1,372Coins
    Ratings:
    +275 / 1 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    :thumbs
    • Winner Winner x 1
  5. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    Thanks. I was thinking of using the seat rails I have on my static rig as they will become useless as the seat will be on fixed mounts. Same idea :p for the pedals in addition to the global adjustement using the profiles

    here is an attempt:
    [​IMG]

    I was wondering on the angle which I set to 60° on this design. Does it sound reasonsable ? more ? less ?
  6. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    Here is the final "draft"
    [​IMG]

    Should be enough adjustable.
    Will get the metal tomorrow at FIC (french shop for metal). 6m long pieces :eek: (luckily, they can cut it on site)
  7. RacingMat

    RacingMat Well-Known Member Gold Contributor

    Joined:
    Feb 22, 2013
    Messages:
    1,942
    Location:
    Marseille - FRANCE
    Balance:
    18,309Coins
    Ratings:
    +1,857 / 16 / -2
    My Motion Simulator:
    2DOF, DC motor, Arduino
  8. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    Wonderfull. Thanks. I'll make sure I'm in line with those models.
  9. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    I'm still alive, just a bit busy with other projects (my wife broke entirely the bathroom.....no comment)
    [​IMG] :rolleyes:
    So I was finally able to get the metal bits:
    [​IMG]
    18 meters total (for 30 euros): 6m of 30x30 , 6m of 25x25, 6m of 20x40
    I'll cut them this week-end and check with my friend for a welding teaching day :p
    Oh ! I also ordered some hall effect sensors, like the ones thanos is using on his AMC board. I like the contact-less thing with this approach.
    • Like Like x 2
  10. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    Here is the final design for the moving part:

    mrig_004.PNG
    As I has exhausted the 6m of 30x30, I will use some 40x20 for the seat mount. Should be enough ?
    The 500mm sliding into 450mm should provide enough range for steering wheel height. If needed I will shorten the 500mm after trying, in case I can't get low enough.
    I'll adjust the 560mm depending on my seat mountand the seat angle of the back, but I should be pretty close with 560mm.
    I attach the current sketchup file. If you have comments to make, make them now : it will be too late tomorrow :D

    Attached Files:

  11. RacingMat

    RacingMat Well-Known Member Gold Contributor

    Joined:
    Feb 22, 2013
    Messages:
    1,942
    Location:
    Marseille - FRANCE
    Balance:
    18,309Coins
    Ratings:
    +1,857 / 16 / -2
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Keep doing first what your wife wants!
    When I see your bathroom, I prefer not to fancy what she could do when she's upset! :mad:
    • Like Like x 1
  12. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    Still alive, and bathroom has not moved an inch..... :rolleyes:
    But I started to weld the rig
    [​IMG]
    At least I see now something starting. I jumped on it and it looks solid but I'm not very happy with my soldering skills, so I'll try again with my "teacher" when he comes back from his holidays
    I'll put all pieces together, then he will review/correct the suspicious solders. Just to make sure and double-sure it doesn't break under rough tracks :grin
    • Like Like x 1
  13. Pit

    Pit - - - - - - - - - - - - - - - - Staff Member Moderator Gold Contributor

    Joined:
    Oct 2, 2013
    Messages:
    2,998
    Location:
    Switzerland
    Balance:
    29,314Coins
    Ratings:
    +3,004 / 29 / -0
    My Motion Simulator:
    DC motor, Arduino, 6DOF
    learning by doing - I cannot say it better. When the rig is finished, your skill level has grown up for sure (in some cases too late :p ).
    • Agree Agree x 2
  14. RacingMat

    RacingMat Well-Known Member Gold Contributor

    Joined:
    Feb 22, 2013
    Messages:
    1,942
    Location:
    Marseille - FRANCE
    Balance:
    18,309Coins
    Ratings:
    +1,857 / 16 / -2
    My Motion Simulator:
    2DOF, DC motor, Arduino
    • Informative Informative x 2
    Last edited: May 22, 2015
  15. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    Yep, an inverter. Together with an automatic helmet. I plan to use this for house work as well.
    This long week end I hope I Will weld a bit the sliding parts. Parallelism Will ne my moto...
  16. Atlas974

    Atlas974 old school

    Joined:
    May 25, 2015
    Messages:
    63
    Occupation:
    Physics chemestry
    Location:
    Reunion island
    Balance:
    273Coins
    Ratings:
    +39 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Really good design, i love it, metal tubes and the way youre going to adjust pedals, :thumbs
  17. Wanegain

    Wanegain Active Member

    Joined:
    Nov 6, 2013
    Messages:
    549
    Location:
    Bruxelles
    Balance:
    1,372Coins
    Ratings:
    +275 / 1 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Wow prices for welding are very attractive o_O!
    It makes me want to invest :p
  18. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    Some welding today, under a heavy sun :p
    [​IMG]
    Max/min should accomodate adults & kids with no problems, even wih very long legs :D
    I also found a cheap gimbal nearby (the garge guy has dozens..... for future projects I guess)
    I hope I will have some time this week-end to weld the two mounts. Parallelism will be the key here.
    Last edited: May 29, 2015
  19. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

    Joined:
    Jul 13, 2014
    Messages:
    13,544
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    102,194Coins
    Ratings:
    +8,497 / 42 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    If you are using a CV joint you may need to want to consider a cross brace with heim joint ends between the top and bottom frame to prevent unwanted torsional twist.
  20. vthinsel

    vthinsel Well-Known Member

    Joined:
    Feb 20, 2015
    Messages:
    372
    Location:
    FRANCE
    Balance:
    4,835Coins
    Ratings:
    +469 / 1 / -0
    My Motion Simulator:
    3DOF, SCN6
    • Old Old x 1