I don't know what kind of university you are, but no matter what kind, there is no problem that is difficult to write. Most graduation theses are the same now. You can basically spell out your graduation thesis by collecting more documents yourself and copying them from left to right. I come from Nanjing University of Aeronautics and Astronautics, and my major is manufacturing. There are many 3D modeling softwares, such as UG, CATIA and PROE…… ........................................................................................................................................................... Generally, it can be completed in one week from learning to modeling and assembly. UG is also very simple. It is superior to CATIA in hole machining and tool path, and PROE modeling is the simplest. No matter what kind of modeling, it depends on the STEP standard, which means that if you use this software to model, you can open it with another software. I hope it works. You can ask questions again.