Tread configurations

This was a potential tread configuration for the roller. The shape was inspired by the shape of wings but I still wanted to keep the shape quite simple. 

I had received some feedback that I could add more curvature to the treads to add a more organic feel. I would address this in the future. 

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This was the result in creating a more organic shaped tread. It now resembles a more of a wing shape
but it still holds that industrial look I am after.
I had received some feedback that the black rubber of the treads gives off some negative environmental connotations. I will address the material of the treads in the future.