If you're looking to develop your CAD designing skills, there are some great open-source communities you can explore like the Open Source Ecology project, LibreCAD community, or projects on GitHub related to robotics and mechanical design.

Also, if you'd like some hands-on inspiration and want to see real CAD models and assemblies, feel free to check out my work on GrabCAD — just search for “Abdullah Yousafzai.” I’ve uploaded several mechanical design projects there that might help you learn techniques and get ideas for your own designs.