Quick Return

Fri, 1 Oct 2010

Oscillating motion is motion which moves along a path, then returns along that same path backwards and forwards, backwards and forwards.
In this example the drive wheel is used to power a waving machine, notice how the left to right movement is slower than the right to left. This is because that left to right motion takes place over a longer part of the drive wheels turn.
By moving the drive wheel closer to the pivot point this effect can be exaggerated. The same mechanism is used in mechanical saws to provide a quick return after the cutting stroke.


Download and make your own working quick return mechanism. Use it find out how the quick return mechanism works first hand or as the starting point for your own model. More details…

Comments (7)

  • Anonymous May 18, 2011 at 4:51 pm

    absolutly stunning- cammy b

    absolutly stunning- cammy b

  • Anonymous July 13, 2011 at 1:42 pm

    nice:)

    nice:)

    • umehta July 14, 2011 at 1:40 pm

      Rob,
      How about making a King

      Rob,

      How about making a King Cobra attacking using quick return while you are working on the grasshopper…?

      Hope things go well with it.

      -Urmish

      • robives July 14, 2011 at 8:16 pm

        Nice idea Umehta!

        Nice idea Umehta!

        • Anonymous November 8, 2011 at 12:21 am

          yes nice idea

          yes nice idea

          • Anonymous November 23, 2011 at 2:18 am

            Aha! this is what I was

            Aha! this is what I was looking for…I knew there was something simpler than a piston + modified crank. But I didn't know what its called until I found this. 

          • ISM Technology May 22, 2013 at 6:10 am

            it is a very interesting idea

            it is a very interesting idea it never striked me that i could create such magnificent stuff from paper

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