![](https://lh3.googleusercontent.com/-dd6GvmBooGM/T1agZbhX-HI/AAAAAAAAAQg/Yn0qvjqVNSM/Vitruvian_Man1.6.jpg)
As you can see, from navel to foot is 1.6 times the distance from navel to head. There are an enormous amount of other examples found in nature and architecture, but I will leave that for Wikipedia. I decided to apply this ratio to my spider in two ways. First, I decided to make the tibia 1.6 times the length of the femur, as shown.
![](https://lh4.googleusercontent.com/-HxVgTIXBWlE/T1ahC9NGW2I/AAAAAAAAAfA/_0Ad5Z99zaY/spider1.6_leg.jpg)
Second, I decided to make the circuit board 1.6 times longer than it is wide. To tie it together I made the width of the board the same length as the tibia. Here are some renders of before and afters. I am in the process of printing the new parts.
![](https://lh4.googleusercontent.com/-Di8zHh356Xc/T1ahBEV5dZI/AAAAAAAAAeQ/aDlAvnL_WSw/spider1_front.jpg)
![](https://lh4.googleusercontent.com/-c5XM8YhSiWc/T1ahBSlUuRI/AAAAAAAAAec/wHw66_F5UVY/spider1.6_front.jpg)
![](https://lh4.googleusercontent.com/-KaoIBLKy5M4/T1ahBm-XFlI/AAAAAAAAAes/Mjp6wL-fafM/spider1_side.jpg)
![](https://lh3.googleusercontent.com/-DAZHm9eHuVE/T1ahCGQ408I/AAAAAAAAAek/yaYL0Oi55JQ/spider1.6_side.jpg)
For me, incorporating the golden ratio into the design makes it pop. I am interested in how others feel, as well as in whether the golden ratio has influenced robotics design before.
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