The present thesis has been developed in collaboration with Space Products and Innovation S.A.R.L. (SPiN) and concerns the creation of a MATLAB code for the implementation of a parametric model of a 1U CubeSat for thermal and mechanical analysis. The project aims to continue the previous work (a MATLAB tool capable of calculating a generic CubeSat’s budgets), which were missing Mechanical and Thermal analyses. The new tool from MATLAB generates a fully parameterized CubeSat model with margins, that can be directly imported in Patran-Nastran for the implementation of static and modal analysis. The first phase of the work is the study of the theoretical background needed and the different software alternatives that can be used.