The chances of seeing the bolts during the animation is slim, but by producing them it gives the group alternative directions to go with the animation.
The crank shaft uses a simple shape. For this I decided to produce the outline of the shaft using the line tool.
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Then use the Extrude modifier to produce the 3 dimensional shape.
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The problem with the extrude tool (as stated earlier) is that the object will be ridged. As I need a smooth object for the crank shaft I decided to use the cut tool (Poly) within editable poly to produce more edges to allow me to easily manipulate the edges into a smooth shape.
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I added detail by extruding a section of the shaft (centre). Using a cylinder I was then able to use the boolean to bore the mounts for the bolts to fit.
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