These images show the completed project, after several days of effort is finally working ready.
Crank allows us to give motion to the crankshaft and connecting rod with him, this will make the animals that represent each type of habitat to rise and will be located in its proper place as it is represented every type of habitat.
mechanisms rod-crank-crank can be used for various jobs and make more educational projects, surely will help us to do other work and complement the content to be treated.
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