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Hello and welcome to my ME 350R project report! While working with my friend to modify the steering on his car, I noticed the usage of a drag link mechanism in the steering system (also known as a double crank or crank crank mechanism). Intrigued, I did some digging to learn more about how and why it was chosen. In the case of a car, it transforms the rotary motion from a crank arm to a second bellcrank. It is commonly used to connect the pitman arm (or drop arm) on the steering box to a steering arm. An image has been provided below (courtesy of Wikipedia).
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