Jump to content


jed

Looney Gears puzzle toy

Recommended Posts


  • Topic Author
  • I can give you an explanation of the looney gears XPresso if you want -

     

    The 1st part generates rotation by addition (actually subtraction because I wanted it to go the opposite way). I get the rotation by adding a small amount to a variable once every frame. The amount added is effectively the speed. This method allows speed up + down smoothly (and backwards). The variable value is user data, and must be reset @ F0.

     

    If you use the usual multiplication method to get rotation

     

    angle = seconds * constant

     

    if you try to vary the speed by changing the constant, stuff jumps around, goes backwards etc. The looney gears needs fine control to get the numbers lined up ::):

     

    For the cog math, I assumed the outer ring was a regular cog with the same teeth, so just get the different cogs rotation by teeth ratio.

     

    The regular epicyclic is the same, but a bit more complex because the planets have local rotation 'inside' the carrier rotation.

     

    Here's Mr Looney Gears himself on YouTube

     

     

    Share this post


    Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now

    • Recently Browsing   0 members

      No registered users viewing this page.

    ×