The primary objective of this thesis is to develop an automated system for generating a gearbox layout, focusing on the precise calculation and design of key components such as bevel gears, cylindrical gears, shafts, and bearings. This system integrates advanced computational tools to ensure precision and efficiency throughout the design process. The initial phase involves detailed calculations for bevel and cylindrical gears using MATLAB. These calculations determine the dimensions and forces acting on the gears based on user inputs like input torque, desired output torque, material properties, and working condition of the gearbox. Parametric modeling in MATLAB is crucial as it allows quick adjustments and rapid design iterations, significantly reducing design time.