I've been polishing off the paper character that I was working on the other day. (No name yet, ideas?) The idea is straight forward. Lift the body and the tongue pops out. Initially I've had problems with the tongue catching on the lower lip and so not sticking out. Time to apply to wonder that is the four bar linkage.

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Cam / Cam Mechanism

This is a proposed mechanism for the forthcoming Dodo project. The Dodo model will demonstate the typical flight path of now extinct bird. A quick burst of wing flapping and a short moment in the air. To acheive this effect the mechanism uses two different cams, a multi-lobed cam to drive the wings and an offset circle cam to lift the body. I've made the mechanism available for members to download and experiment with.

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Finally took delivery of coloured card today. I've put together the cam cam version of the dodo mechanism in a charming range of clashing colours. Lovely!

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An as yet unnamed paper character that has taken shape while I'm waiting for coloured card to arrive for the dodo project. Lift the head on the character and the tongue pops out.

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I've completed a final stage prototype for the cam & cam mechanism. I've changed the cam profile to be smoother. and moved some of the parts around inside the box so that everything fits together better.

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Push rods are used to take a movement from one point to another in a mechanism. They generally need to be rigid and relatively strong.

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I've put together a first draft of the alternate mechanism for the Dodo model. It works well for a first draft but I'll need to make a few changes.

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Having completed a crank & cam mechanism for the upcoming Dodo model I'm now turning my attention to cam-only version In this mechanism I'll have two cams.

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I've completed the parts and instruction for the crank / cam mechanism. This one of two mechanisms I'm trying out for the Dodo model that I'm working on at the moment. The pdf file is available for premium members to download.

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I've completed the layout for mk I dodo mechanism. It uses a crank/cam to move the wings at four times the speed of the body so giving a fluttering effect.

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