Fusion

Install Fusion 360 (free)
https://www.autodesk.com/products/fusion-360/students-teachers-educators

Watch this playlist with 2 videos (20 min ea)
https://www.youtube.com/watch?v=A5bc9c3S12g&list=PL40d7srwyc_Ow4aaOGXlP2idPGwD7ruKg

And perhaps also
https://www.youtube.com/playlist?list=PLmA_xUT-8UlLmTvSAketheHaNQWxNA5yT (7 videos 6 min ea)