This work deals with the analysis of the state and development of virtual reality and AR. In this work I described in detail the advantages and disadvantages of individual technologies, history, present state and trends in development these technologies. In addition to modelling components in a virtual environment, the current state of the art allows the assembly or disassembling of individual machinery as well as testing their functionality and mechanical properties, using special goggles and gloves. The basis for creating 3D images are special projectors, in one, two, or quadruple configurations. The aim of this bachelor thesis is to design a modular and flexible box for the projectors. The designed concept allows for different flexible a...