motorcycle frame

This is my first motorcycle frame made ​​in AutoCAD Mechanical 2012. Not yet finished, but maybe I'll find some time to finish it. Made of a pipe wall thickness and the size typically used for the frame of motorcycle or other vehicles. The basic skeleton dimensions were taken from the internet and work experience. When I lived in England, was doing work on the Trumpf laser tube for the Caterham UK. For me it was a very inspiring experience. I worked on many modern machines of this type, and it helps me in design.