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Showroom **RIP** - 6DOF project using 12v DC Motors, Sabertooth 2x60's (was MM's) and Arduinos + OSW

Discussion in 'DIY Motion Simulator Projects' started by SilentChill, Jun 2, 2015.

  1. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
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    With my G-Seat and Harness Tensioner - I don't use BFF anymore, as it cannot support all the extra axises. All the current Simtools Plug-ins needs is two surges, so one can be applied in a pitching manner also :).
  2. SilentChill

    SilentChill Problem Maker

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    Would be very easy to apply to Surges to one of the extra ;)
  3. LEO.LAU

    LEO.LAU New Member

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    I like your project,it is very great. and I am studying 6DOF from you. I would like to ask you what software can be used for mechanical simulation by using simtools output data?
    Best regards.
    leo
  4. SilentChill

    SilentChill Problem Maker

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    Reading the FAQ page would be a good start not my build thread :)
    • Agree Agree x 1
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  5. SixDegreesOfFlight

    SixDegreesOfFlight Well-Known Member

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    Are you still connecting the PSU's and car battery all in parallel and all with isolation diodes? Do you then have a separate car battery charger? Do you continuously charge the car battery or only after a gaming session (when it's isolated)?

    You have been such an inspiration that I will be starting my own 6DOF as soon as I have got my head around all this wealth of information :thumbs
  6. SilentChill

    SilentChill Problem Maker

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    Thanks for the kind words although I can't take credit for a lot of what I have done I have just copied many others, that's what's great about this community a wealth of sharing and knowledge


    I have them all connected together and I have turned the voltage on the PSU's to about 13.8v so they are always charging the car battery seems to work a treat so far.
    • Like Like x 1
  7. SixDegreesOfFlight

    SixDegreesOfFlight Well-Known Member

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    Thank you - that makes sense now. The power supplies you used are similar to the LED strip lighting ones I got for my Anet A8 3D printer 12v @40A and they have a voltage adjustment screw (and cooling fan). By cranking up the output voltage you are able to overcome the blocking diode loss of 0.6v and at the same time prevent the power supplies from being fed from the battery when they are switched off.
    Cheers - that helps a lot
  8. SilentChill

    SilentChill Problem Maker

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    I do have a separate isolation switch from the battery to the psu's
  9. SixDegreesOfFlight

    SixDegreesOfFlight Well-Known Member

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    That's a good idea and I'll add fuses too
  10. SeatTime

    SeatTime Well-Known Member

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    Not saying it 'will' be a problem :) , but it is not good design to have a charging circuit with no regulator to stop the battery being overcharged (can even be a safety hazard). I would just run the power supply at 12vDC, you are really only using the battery as a big capacitor/filter.
  11. SixDegreesOfFlight

    SixDegreesOfFlight Well-Known Member

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    I agree. If there are isolating diodes on each psu and on the battery, I can't see how the battery will be charged anyway:think

    If the cathode of the isolating diode on the battery is taken low when the psu is turned off won't the battery try and discharge through the psu output circuit? I suppose it would depend on the output configuration of the psu - they must float. That must be why the isolating switch is needed.
  12. SilentChill

    SilentChill Problem Maker

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    I'm using the battery as extra power because my motors need it, perhaps if I could lift my platform up with my little finger like some ;) it wouldn't lol

    Its never on long enough to over charge and when its turned on its in use, never been an issue so far. The reason why I did that was I just thought an alternator in a car charges the battery constantly at that voltage and they never explode ;)
    • Funny Funny x 1
  13. SilentChill

    SilentChill Problem Maker

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    If I leave the isolation switch on for the battery and the power to the PSU's off the whole circuit powers on and I can use the rig with just the battery.
  14. SeatTime

    SeatTime Well-Known Member

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    Well yes and in your case it is obviously not a problem, but all car charging circuits do have a regulator. Just wanted to make sure that everyone understood what is going on.

    [​IMG]
    ;).
    • Agree Agree x 2
  15. SilentChill

    SilentChill Problem Maker

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    Totally agree and my Regulator is the PSU's they will only ever output 13.8v. To my understanding this is the minimum an alternator will ever output and will only really be a trickle charge, so in theory (in my not so brilliant brain) it should be safe ????
  16. baykah

    baykah Active Member

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    Silent, you have bodyshackers on your sim? how did you control them ?
  17. SilentChill

    SilentChill Problem Maker

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    Did have them plugged into the speakers output and through a LFE sub, not the best but it was ok.

    Now testing with something else which is working pretty well I must say ;)
    • Like Like x 1
  18. baykah

    baykah Active Member

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    And is it something you can share :D ?

    I was planning to test it like you did before..
  19. SilentChill

    SilentChill Problem Maker

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    If I told you I would have to kill you :D
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  20. SilentChill

    SilentChill Problem Maker

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    Oooooooo exciting !!!
    20170726_153715.jpg

    20170726_155548.jpg

    Will post a couple more pics once I got them installed :)
    • Like Like x 6
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