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Two Seater, 180 View, 3 DOF Flight Sim Platform

Discussion in 'DIY Motion Simulator Projects' started by Marc Turcotte, Feb 13, 2015.

  1. Marc Turcotte

    Marc Turcotte New Member

    Joined:
    Oct 28, 2014
    Messages:
    8
    Occupation:
    R&D Supervisor
    Location:
    Quebec, Canada
    Balance:
    503Coins
    Ratings:
    +3 / 0 / -1
    My Motion Simulator:
    3DOF, AC motor, Motion platform
    Hello All,

    I opening this thread to record my build progress.

    I'm a former embedded software developer, recently turned into a R&D supervisor that been dreaming of building a two seater so that my dad and myself could keep flying together once he loses in pilot license.

    Watching Roland Schieller's 2 DOF platform made me realized it was possible with reasonable parts.

    Like Roland van Roy I have a limited ceiling height constrain so I had a pretty good idea on how to attack the problem after looking at his DIY Motion PlatformIII http://www.simprojects.nl/diy_motion_platform_iii.htm

    I still had one major problem. Maybe it's was in my mind but , I leave in Quebec/Canada I found it hard to find mechanical parts and precision metal working suppliers.

    That all changed with my new job. I finally got the chance to meet very nice mechanical people that are building machines for a leaving and now I know about suppliers like:
    I also managed to find an US company http://www.automationdirect.com that sell AC/DC motors, VFD drives and gear boxes at a very reasonable price.

    My platform's characteristic would ideally look like this:
    • 1.8m width x 1.5m length
    • 2.13 m : Max Height including motion & heave
    • 180 View : With 5 27" LED monitors
    • 275 Kg : Max Platform Weight
    • 20 deg : Max pitch and roll angular movement
    • 35 deg/s : Max angular speed
    • 0.080 : Max heave movement
    • 1G : Max heave acceleration
    • 4 actuators
    • Actuator driven by 1-2 hp, 220 v, 3 phases, AC motor with VFD drive
    • 24A @ 220V : Max source power
    I'm at the design stage and I working at obtaining the drive motor characteristics from the platform parameters instead of designing the platform from the motor specifications.

    I have been working for the past months on a set of spreadsheets that allowed me to reproduce a CKAS like platform that could not fit into my basement.

    My newest version aims at designing a DIY Motion Platform III like platform that is not making use of cables and without a central pin for preventing swinging motion.

    My ultimate goal, other than having my own platform, is to provide all spreadsheets, plans, technical knowledge I gained while building it to the community.

    I'll surely have questions has I have not been doing maths and classic physics for the last 25 years but I'm sure it will be a fun ride building it.

    I'll leave you with some images of what is to come and will be posting progress as I make them.

    Platform MK-1.1
    Motion Platform-Mk-1.1a.jpg Motion Platform-Mk-1.1b.jpg
    Actuator MK-2.1
    Actuator-Mk-2.1a.jpg Actuator-Mk-2.1b.jpg
    • Like Like x 3
    • Dumb Dumb x 1
    Last edited: Feb 15, 2015
  2. RacingMat

    RacingMat Well-Known Member Gold Contributor

    Joined:
    Feb 22, 2013
    Messages:
    2,236
    Location:
    Marseille - FRANCE
    Balance:
    20,976Coins
    Ratings:
    +2,089 / 21 / -2
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Wouah!
    what a nice project :)

    I wish you good luck and success
  3. Pit

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

    Joined:
    Oct 2, 2013
    Messages:
    3,012
    Location:
    Switzerland
    Balance:
    30,451Coins
    Ratings:
    +3,091 / 31 / -0
    My Motion Simulator:
    DC motor, Arduino, 6DOF
    Super Projekt! Klingt nach Seilwinden...great work, it seems you have built in some winches...
  4. Marc Turcotte

    Marc Turcotte New Member

    Joined:
    Oct 28, 2014
    Messages:
    8
    Occupation:
    R&D Supervisor
    Location:
    Quebec, Canada
    Balance:
    503Coins
    Ratings:
    +3 / 0 / -1
    My Motion Simulator:
    3DOF, AC motor, Motion platform
    Thank you Pit, :)

    Those are early conceptual sketches done with Sketchup.

    I'll be finalizing them once my calculations are completed.

    I'm trying to design them so I won't require soldering to assemble them.

    I'll then have to learn Autodesk Inventor and redraw then to have a metal shop lazer cut the parts.
  5. value1

    value1 Nerd SimAxe Beta Tester SimTools Developer Gold Contributor

    Joined:
    Jan 9, 2011
    Messages:
    2,184
    Location:
    Zug, Switzerland
    Balance:
    14,802Coins
    Ratings:
    +3,322 / 11 / -1
    My Motion Simulator:
    2DOF, DC motor, JRK, Joyrider
    Possibly you learn more and quicker, when you learn welding instead of Inventor ;)
    • Agree Agree x 1
  6. Marc Turcotte

    Marc Turcotte New Member

    Joined:
    Oct 28, 2014
    Messages:
    8
    Occupation:
    R&D Supervisor
    Location:
    Quebec, Canada
    Balance:
    503Coins
    Ratings:
    +3 / 0 / -1
    My Motion Simulator:
    3DOF, AC motor, Motion platform
    Hello Value1,

    It's not like I don't know how to weld is more like I not setup to use a TIG or a MIG at home anymore.

    I had a lot out fun soldering my dad's airplane.

    I should I thought about it twice before buying my second house with a carport instead of a garage. o_O

    Are you referring at welding as actually welding or some kind of software ?
  7. value1

    value1 Nerd SimAxe Beta Tester SimTools Developer Gold Contributor

    Joined:
    Jan 9, 2011
    Messages:
    2,184
    Location:
    Zug, Switzerland
    Balance:
    14,802Coins
    Ratings:
    +3,322 / 11 / -1
    My Motion Simulator:
    2DOF, DC motor, JRK, Joyrider
    Yes, I mean welding real stuff. I have the luck to have a well equipped public workshop nearby so that I don't need the space for storing the equipment when I don't use it. And the small space requirements of Inventor is a benefit on the other side ;)
  8. Marc Turcotte

    Marc Turcotte New Member

    Joined:
    Oct 28, 2014
    Messages:
    8
    Occupation:
    R&D Supervisor
    Location:
    Quebec, Canada
    Balance:
    503Coins
    Ratings:
    +3 / 0 / -1
    My Motion Simulator:
    3DOF, AC motor, Motion platform
    I must admit a recently went to a shop that sells MIGs that can be run on 120-220v.

    History will tell if I buy one.

    Been able to disassemble them may come handy to move them around.

    I did not calculate their weight yet but I presume they should be kind of heavy even with holes in them.

    I think they'll be made of 6 mm steel and about a 1 m height by 20 cm wide.