I want to start a project with my brother ,we are thinking of chopping a truck. But before we start we need to know how you cut or get the windsheild cut. So any kind of tip would be useful.

See Cutting Windshields (http://www.cadvision.com/blanchas/54pontiac/windshield.html). Talent seems to be the main ingredient for success. Lacking talent, I'd pursue the water jet option first.