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Bruce's 2dof fullframe rig aka: the "Ratrod"

Discussion in 'DIY Motion Simulator Projects' started by bruce stephen, Jun 8, 2015.

Page 4 of 7
  1. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF

    more videos to come. sry they r cheap. im not meant for the movie business.
    bruce stephen, Jul 14, 2015
    #61
  2. Alexey

    Alexey Well-Known Member

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    My Motion Simulator:
    3DOF, DC motor, Arduino
    Great work man! Good luck with the 6dof build, I'll be watching this space.
    Alexey, Jul 15, 2015
    #62
  3. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF

    Tuned a little more. The final number for the rods are 105mm ctc. I only use about 80 degrees of rotation. I need new connectors/rod ends the ones I'm using now have too much play. You can hear them rattling. The motors turn at 41 rpms. And are rated 310in.lbs. torque or 35nm. Comes out to a linear velocity of .45 m/s.
    • Like Like x 6
    Last edited: Jul 28, 2015
    bruce stephen, Jul 28, 2015
    #63
  4. Historiker

    Historiker Dramamine Adict Gold Contributor

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    My Motion Simulator:
    3DOF, DC motor, Arduino, Motion platform, 6DOF
    Great build Bruce! Sorry that I did not get back to you sooner over in iRacing forums. Well done.
    Historiker, Aug 16, 2015
    #64
  5. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF
    Ty, I need to update I have since replaced the pots and have made new connector rods. Tweaked profile. Adjusted then adjusted more on the rig so on and so on it never ends. I'm hooked on motion for sure.
    • Agree Agree x 1
    bruce stephen, Aug 16, 2015
    #65
  6. Historiker

    Historiker Dramamine Adict Gold Contributor

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    My Motion Simulator:
    3DOF, DC motor, Arduino, Motion platform, 6DOF
    haha, I understand completely. We just finished building our house and on my first day off in five months did I sleep in? Nope. Did I find a good book and relax on the deck? Nope. I hauled the motion pit to the new man cave (Mission Control) set it up and did a quick upgrade to the traction loss system before spending the rest of the day getting pummeled in iRacing by my new Holden Commodore! :)
    • Like Like x 1
    Historiker, Aug 16, 2015
    #66
  7. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF
    Lol Saturday 6 am every week. I race rather than sleep in. I get up around 430 get coffee and some practice laps, drives the wife nuts.
    Last edited: Aug 16, 2015
    bruce stephen, Aug 16, 2015
    #67
  8. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF
    20150905_160215.jpg
    20150905_160259.jpg
    • Like Like x 4
    Last edited: Oct 3, 2015
    bruce stephen, Sep 5, 2015
    #68
  9. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF
    20151003_120053.jpg
    20151003_115611.jpg
    20151003_115227.jpg
    20151003_115132.jpg
    added a 12 volt proto board for the fans, moved the nano to the side and drilled a hole for external usb access, added fan with led temp to case, added quick connectors to case for pot hookup with external access.

    this one is finally done now i can swap it out with the first one i built.
    • Like Like x 4
    • Winner Winner x 1
    Last edited: Oct 3, 2015
    bruce stephen, Oct 3, 2015
    #69
  10. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, JRK
    that Fan is BAD ASS!!!!!!
    • Agree Agree x 4
    Nick Moxley, Oct 3, 2015
    #70
  11. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF
    • Informative Informative x 2
    bruce stephen, Oct 4, 2015
    #71
  12. Nick Moxley

    Nick Moxley Well-Known Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, JRK
    Interesting, but i would be after a 120mm......Granted im sure they ARE out there. Thanks Bruce.

    quick google search, Oh ya there available in droves.
    • Like Like x 1
    Nick Moxley, Oct 4, 2015
    #72
  13. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF
    20160219_184659.jpg
    New design for mounting my potentiometer. this will allow me more freedom with gear ratios. It also removes a pinch point where i had meshing gears before. The plate is repurposed from a bed frame.
    • Like Like x 2
    • Creative Creative x 2
    bruce stephen, Feb 20, 2016
    #73
  14. stevemontuno

    stevemontuno Active Member

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    My Motion Simulator:
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    Thats a pretty cool design @bruce stephen ,,,i was toying with the same sort of idea but using an Oring as a pully with the pot right next to the motor shaft,,,
    I did have a look for a belt but couldn't find one small enough,,,did you find any shorter belts than the one your using or can you cut and glue it to any size?

    Cheers
    stevemontuno, Feb 20, 2016
    #74
  15. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF
    Yes @stevemontuno cut and glue. I used a razor to slice off two teeth from the belt then glue the toothless part to the backside of the other end. I used CA glue, stuff gets brittle we'll see how it holds. its t2.5 left over from the 3dprinter build.

    first test went well. this is 2.22:1 ratio. can switch out pot gear to change ratio. Ive got a bourns 10k pot in there right now in case i destroy it. they are only a couple dollars. now to put it on repeat and see how the belt holds. I may have to purchase the proper adhesive.

    EDIT: the ca glue didnt last as suspected. headed to store. there are always zip ties as a last resort.
    • Like Like x 2
    Last edited: Feb 21, 2016
    bruce stephen, Feb 20, 2016
    #75
  16. stevemontuno

    stevemontuno Active Member

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    @bruce stephen Cheers mate i never thought about 3d printer belt ,,,i'll see how the Oring does and then i might try your way as it's a very tidy setup
    stevemontuno, Feb 20, 2016
    #76
  17. BondeX

    BondeX Active Member

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    My Motion Simulator:
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    Hey @bruce stephen, I think these motors are working quite well for your rig mover, does that mean that for just the seat mover they will work even better? Thanks
    BondeX, Feb 20, 2016
    #77
  18. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    My Motion Simulator:
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    not sure @BondeX , i'm not familiar with the seat movers and would be speaking out of turn. the design and leverage will dictate torque and speed attained. these are slow so they require a long lever.
    • Informative Informative x 1
    bruce stephen, Feb 20, 2016
    #78
  19. BondeX

    BondeX Active Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, Arduino, 6DOF
    Thanks @bruce stephen just learnt something new that if you have slower motor, you need long lever.
    BondeX, Feb 20, 2016
    #79
  20. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

    Joined:
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    Occupation:
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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform, 6DOF
    bruce stephen, Feb 20, 2016
    #80
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