One of the main trends in industrial robotics is collaboration between human and robot. Collaboration is applied especially in the field of assembly tasks. The current automation technology is not at the level that could ensure demanding tasks. These tasks are often associated with actions requiring human skills. Many manufacturers of industrial robot offer a solution in the form of collaborative robot. These robots represent new opportunities for industry. In order to further develop area of collaborative robotics it is necessary to look for new technologies. This article deals with design of method which is based on open source platform. Method is applied to solve a real assembly task.