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Sick constrain

By MUHAMMAD ARIF ABU BAKAR on 29 Oct 03:11 2 answers 0 comments

I want to design my rc heli using Inventor 2016. I need to constrain the linkage from bottom swash plate to upper swash plate (coaxial rotor). When i want to move the swashplate to top to bottom and make a rotation, it wont move. Sometimes the design doctor in red colour after constrain. But the sick constrain in another part of sub-assembly which is it should not happen


Assembly7.pdf, 40.5 KB

2 answers

  • Wilhelm Coetzer
    Wilhelm Coetzer almost 2 years ago

    Awesome project! :)

    I am not into RC myself (no time) - but the mechanicals are proper design...

    Very difficult for you to explain what the problem really is... would be best if I could take a look (I got 2016). But in the mean time:

    I expect the sub-assemblies are flexible & constrained to leave the only possible movement for the top assembly.

    Is it possible to build another sub-assembly with only the one set of rotors and swash-plate. Then test that... then put this sub-assy in the top assembly as flexible. Etc.

    Enjoy the challenge - it should be worth the effort.

  • Tommy Huijs
    Tommy Huijs almost 2 years ago

    Dear Muhammad Arif,

    As far as I do understand you well....
    it seems you have the same problem I did have.
    I did solve my problem with a "invisable wheel" what is running over an sweep construction / surface.
    The constrain needs to be created to this sweep surface.
    By changing the distance of the sweep you can change the angle / behavior if the construction.
    I did spend some time because normally the surface of the sweep construction is'nt easy to constrain but finally it works.

    I hope this will solve your question.

    Beste Regards....

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