Multiple Cam Progress

Sun, 27 Oct 2013

Three cams and three followers mounted into a box and looking, I think you'll agree, ready for business! 

It works nicely, but for certain shapes of cam the main push-rod bumps into the cam itself. 

Here's the original cam follower design, there is very little room for movement with wider cam profiles.

By modifying the design so that the follower is offset one way and the push-rod the other the cam follower has a much greater range of movement.

The business end of the push-rods.

Next step, a suitable way of joining these ends to vertical push-rod and thence to a character.

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Comments (2)

  • Simon68 October 28, 2013 at 10:09 pm

    That’s because I love Rob’s

    That's because I love Rob's creations: they are truly Paper ENGENEERING!

    By the way Rob, this multiple cam system reminds me an old Tin automaton:
    Philip Vielmetter Clown Artist

    Curious to see your version of this amazing toy…

    Thanks for the link, what a fantastic creation! – RI

  • cool022883 October 29, 2013 at 4:00 pm

    once you get the  push rods

    once you get the  push rods attached and have a complete working mechanism are you going to release it as a project for us to play with?

    Sure will 🙂 – RI

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