Axis Input [0,0,1] or [0,1,0] or [1,0,0]


![colobmo2](https://cloud.githubusercontent.com/assets/619340/3489193/bfdd92d8-051b-11e4-84f5-0f140c5458b2.gif)


[old image](https://cloud.githubusercontent.com/assets/619340/3488931/caca1272-050a-11e4-9db7-9c39645f3ef7.gif)

pretty basic building block for generative geometry. A convenience and present in other parametric packages.