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New to the community 2DOF seat mover (1st build)

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by navarrma, Dec 14, 2013.

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  1. eaorobbie

    eaorobbie Well-Known Member SimTools Developer Gold Contributor

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    My Motion Simulator:
    2DOF, DC motor, JRK, SimforceGT, 6DOF
    I have replied. to PM mate.
    eaorobbie, Dec 16, 2013
    #21
  2. navarrma

    navarrma Member

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    Thanks!
    navarrma, Dec 16, 2013
    #22
  3. navarrma

    navarrma Member

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    My Motion Simulator:
    2DOF, DC motor, JRK
    Last edited by a moderator: Dec 27, 2013
    navarrma, Dec 17, 2013
    #23
  4. bsft

    bsft

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    1. no
    2. yes
    3. dunno
    bsft, Dec 17, 2013
    #24
  5. navarrma

    navarrma Member

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    My Motion Simulator:
    2DOF, DC motor, JRK
    Im leaning towards a full platform build with the winch motors (which are really cheap btw) and amazon prime gives me free 2 day shipping...so i'll have my racing seats in on thursday, the JRKS should be here by friday, the winches could be here by thursday, and I went to my local steel supplier and stocked up on enough to build one platform sim and a static frame for my little brother. All in all its starting to come together I think. I'm going to pull the trigger on the winch motors.
    navarrma, Dec 17, 2013
    #25
  6. bsft

    bsft

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    Full frame will be good, I suggest screen still though, not attached to moving frame as they tend to wear out faster, but its up to you of course.
    bsft, Dec 17, 2013
    #26
  7. navarrma

    navarrma Member

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    My Motion Simulator:
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    I definitely don't want to swing an expensive screen around in the air....it can stay put. The next question is power supplies...then I think that i'll be well on my way to getting this thing finished (physically) before christmas. I'm a dreamer, I know... but i like to stay positive
    navarrma, Dec 17, 2013
    #27
  8. bsft

    bsft

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    a car battery of at least 300 CCA and a charger will do the job well
    bsft, Dec 17, 2013
    #28
  9. navarrma

    navarrma Member

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    My Motion Simulator:
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    And those go to the jrks? Do you know of a diagram

    Sent from my SAMSUNG-SGH-I337 using Tapatalk
    navarrma, Dec 17, 2013
    #29
  10. bsft

    bsft

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    jrk to wiper wireup fixed.JPG
    Obviously connect pots to the motor lever somehow , I use gears and a multiturn

    • Like Like x 1
    bsft, Dec 17, 2013
    #30
  11. value1

    value1 Nerd SimAxe Beta Tester SimTools Developer Gold Contributor

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    My Motion Simulator:
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    Hi Matt

    I just have some theoretical knowledge about motors and have built my sim with winches, actually using these: Arwin TRC9202 (last page of the catalogue), 2'000 lb traction
    So your 2nd and 3rd winches are certainly good options. Nevertheless for my joyrider type (rotating like 150kg) I would prefer to have more power. Your 1st link is certainly too weak.

    For reference purposes I attach a file where you can calcultate the performance curves of your motor: torque, power output, efficiency etc.
    You'll need to measure the current and rpm unloaded ILeerlauf/IM1 and nLeerlauf/n1.
    And you measure the current when stalled IM2 and n2=0.
    Alternatively and prefereably IM1/n1 and IM2/n2 are measured inbetween.
    The calculation will give you a table with Current, Speed, PowerIN, PowerOUT, Torque and Efficiency.

    You can calculate the necessary torque for example with the Fly Elise-ng Motion Platform Designer (a 30-days trial can be downloaded here I think)

    Probably the easiest is just to build your sim and try :grin

    Attached Files:

    • Like Like x 1
    value1, Dec 17, 2013
    #31
  12. navarrma

    navarrma Member

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    Awesome, thanks for the tips. This forum is great...not used to people being so helpful
    • Like Like x 3
    navarrma, Dec 17, 2013
    #32
  13. navarrma

    navarrma Member

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    Ok....last question for tonight, its 0330 here... Any particular pots that I should look into, and how does one calculate the pivot for a full frame (wheels+pedals+seat) platform...will it just be slightly forward of the seat center of gravity?
    navarrma, Dec 17, 2013
    #33
  14. eaorobbie

    eaorobbie Well-Known Member SimTools Developer Gold Contributor

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    My Motion Simulator:
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    I sort of poineered that (2) style of winchs , on a Jrk. @AldoZ to it to the extreme and @value1 built a nice joyrider using them, they are a little noisy and beware the terminals have cap on them inside the motors back face , used for radio noise suppression. Please check with a multimeter that both the power lead and earth lead are separate from the body (isolated) then you will be cool.
    • Like Like x 2
    eaorobbie, Dec 17, 2013
    #34
  15. navarrma

    navarrma Member

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    Ah, i'll keep an eye out for the caps...those are fun to find by accident.
    navarrma, Dec 17, 2013
    #35
  16. bsft

    bsft

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    Put the frame with you sitting on it and wheel and pedals on a round pipe, roll frame back and forth, get someone to help till you find a balance point, pivot goes there.
    • Like Like x 1
    bsft, Dec 17, 2013
    #36
  17. bsft

    bsft

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    and blow the jrks to hell yes
    • Like Like x 1
    bsft, Dec 17, 2013
    #37
  18. Historiker

    Historiker Dramamine Adict Gold Contributor

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    My Motion Simulator:
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    I use the Master Lock winches, they work great. A little modding really quiets them down but they are still by no means silent. As far as I can tell, most of the cheap winches in that configuration are built in the same factor with different brand names applied. I also bought a GudCraft at a local big box hardware store and inside the plastic housing they are identical.
    Last edited by a moderator: Dec 27, 2013
    Historiker, Dec 17, 2013
    #38
  19. navarrma

    navarrma Member

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    My Motion Simulator:
    2DOF, DC motor, JRK
    Is there any reason that a 1200W pc power supply wouldn't work for a build like this...will the jrks draw too many amps or is it something to consider?
    navarrma, Dec 18, 2013
    #39
  20. eaorobbie

    eaorobbie Well-Known Member SimTools Developer Gold Contributor

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    My Motion Simulator:
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    Others have used similar items mate. I use a 12dc battery configured like below for ease.
    12v battery.jpg
    but these look alot better and once installed and wire not much cheaper.
    http://www.ebay.com.au/itm/1A-2A-3A..._Power_Boards_Cables&var=&hash=item3a8669a1cc

    12volt at 30amps - $68 each.
    • Like Like x 1
    eaorobbie, Dec 18, 2013
    #40
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