Mixing Media Within the Mechanics

Mike
 

I was wondering about the pros and cons of mixing media within the mechanics of our autuomata. For example could I use a brass, aluminum or steel rod in place of a wooden dowel rod, but then have wooden cams, cranks, gears and levels attached to the metal rod? Over a certain length I guess all rods tend to flex. Or would it be wiser to simply add support posts at the point of flex? I hope this makes sense.
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Mike

Wooden Curiosities

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