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3Dof sim

Discussion in 'DIY Motion Simulator Projects' started by Lucian, Nov 6, 2014.

  1. Scratch

    Scratch Active Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    Oh, I was referring to Lucian's post and his picture of ac relay, @SeatTime posted his comment while I was writing mine, did not see it. His 40A dc relay seems better option than one in my link.
  2. Lucian

    Lucian Member

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    So how do i wire this ac relay to my motors?

    And whats bad about ac relays?
  3. Lucian

    Lucian Member

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    @SeatTime you use 3 of them right? Why its not good to use the relay i bought for ac? Why do i need dc?
  4. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
    AC motor, Motion platform
    The AC relays will work, just not for as long, as the high current DC back emf (when used in anger) destroys the contacts . So if you are going to buy them, why not chose something designed for the job. DC relays are designed to handle these high DC 'break' currents for allot longer. My sim actually has five DC power supplies (for five motors), so I have five relays. They rarely get used in anger.
    • Informative Informative x 1
  5. Lucian

    Lucian Member

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    And you can switch of all of them whit a push of a button if yes please help me with a wiring diagram on monday i will by 3 pf this relays they are good right? image.jpg
  6. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, JRK
    I was informed with the Standard Non Solid state relays that the potential for them to "lock on" is much greater, I Also don't see Solid State relays being any more expensive than a standard Automotive relay.
  7. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
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    If you can get a suitably rated solid state for the same money go for it.
  8. Lucian

    Lucian Member

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    I want the right thing is that ok the picture i posted?
  9. Lucian

    Lucian Member

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    And how do i wire them to shutdown whit one push of the button
  10. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
  11. Lucian

    Lucian Member

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    Ye thats the diagram i shoud you for a couples days ago but i cant figure that out.

    How about if i connect all psu to this and if something goes wrong i pull the switch and all psu goes out of electriciry?
    image.jpg
  12. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    That would work too,
  13. insanegr

    insanegr !N$@n€

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    My Motion Simulator:
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    if you are going to use psu for powering your sim you can use switches as @Slider has done in his tuto.
    http://www.xsimulator.net/community/threads/how-to-modify-a-server-power-supply-for-12v.5774/
    its simple to do and not much ampere going threw these connectors .
    don't know if its good switching off power from JRK or MM while they are connected to simtools or there configuration program or what else can be used. here i need some help too @bsft and @Pit can really answer to this
  14. bsft

    bsft

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    with the jrk, as they get their power from 5v USB, they can have the 12v shut off, but you may need to reset the jrk in the utility program.
    I still have not got a clear answer as to why he wants to shut the power completely off unless it is just in case something breaks.
  15. Pit

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

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    My Motion Simulator:
    DC motor, Arduino, 6DOF
    Switching off the Ard/MM is no problem. I use a mushroom emergency button, which shuts down the PSU's directly.
    • Agree Agree x 1
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  16. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
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    JRK's Do NOT require a reboot if you turn the power off mid game, I have 100% confirmed this with my Kill switch set up, I've used it many of times in Online MP race's where you Cant Stop the motion or Hit ESC, So i Hit the kill switch, wait for the motion to settle and pop the switch back on and resume.
    • Informative Informative x 3
    • Agree Agree x 1
  17. Scratch

    Scratch Active Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    Also with MM it is ok to shut down 12V from motors and leave arduino on when ever you wish, comes back alive no prob. But shutting down arduino crashes Simtools.

    Edit. Ah, should read more carefully, Pit allready covered this.
    • Agree Agree x 1
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  18. Pit

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

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    My Motion Simulator:
    DC motor, Arduino, 6DOF
    Agreed, I have to precise my posting above, the Arduino is connected to the Notebook, so the power (5V) is always on and by association the MM is connected to the Ard. So they are always "on" even if I shut down the PSUs to stopthe motors. BTW the new SMC3 code allows to attach a separate pot to control the motion output. This output can to be used like a volume control so no shutdown of the motors is needed while playing. Only at the end of your track day :)
  19. bsft

    bsft

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    there, I am wrong
  20. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, JRK

    Thats pretty cool i must say, Handy in those "hack online MP races" where you can barely get off the Start/Finish strait. Turn it right down, Get off the start and turn back on once your settled into a position.