NYU ITP 4-in-4

Linkages: Beam & Crank

This is turning into a tutorial in Flash, and is a work in progress.

I spent last night drawing up a Beam & Crank linkage in Vectorworks from Marks’ Mechanical Engineers’ Handbook:

That part didn’t take too long, so then I drew it through 15 stages of rotation, assuming 15 frames per second of animation–so 360° ÷ 15 = 24°.  So far, pretty easy, but then I printed the images as PDF’s and imported them into iMovie HD.  Definitely not the way to go.  I ended up with a pretty crude bit-mapped animation:

I tried PNG’s, and the line work was better, but I had the setting wrong for maintaining the canvas size, so every frame had a different proportion.  This effect might come in handy some time, but not here:

I then realized that I needed vector-based animation. Duh. Flash. I knew I would need to learn it or something like it sooner or later. No time like the present. I don’t have it installed, but I figured out how to export the Vectorworks files as a .DWG into Illustrator (each layer can also be copied and pasted), and then exported as a Flash movie:

Beam & Crank linkage, “as used on side-wheel steamers.”

To follow up on this, I plan to do the same with:

  • Drag-Link Mechanism
  • Rocker Mechanism
  • Sliding-Block Linkage
  • Swinging-Block Linkage
  • Turning-Block Linkage

March 15th, 2010


Add your own

  • 1. NYU ITP 4-in-4 » Li&hellip  |  March 17th, 2010 at 11:04 pm

    [...] I decided to work on linkages some more, and moved on to the Drag-Link Mechanism.  As described by Marks’ Mechanical [...]

  • 2. Linkages: Drag-Link Mecha&hellip  |  March 17th, 2010 at 11:13 pm

    [...] I decided to work on linkages some more, and moved on to the Drag-Link Mechanism. As described by Marks’ Mechanical [...]

Leave a Comment


Required, hidden

Trackback this post  |  Subscribe to the comments via RSS Feed

Daily Posts

  • Day 1
  • Day 2
  • Day 3
  • Day 4
  • Day 5
  • feed


    type and hit 'enter'