Cheers for that, going to watch them and see what I can learn.A while back I bought a course on Udemy called Designing for 3D Printing with Fusion 360 by Vladimir Mariano which was quite good.
Freecad is another option if you dont wont to deal with the cloud.
This looked like a good Freecad playlist -
Fusion 360 is free with project limitations but is usable. I tried it, but coming from an IT non CAD background, its hard work learning and wish there was something easier, not tried the sketchup type stuff yet though.
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Also... Be careful with the licensing, as fusion can stop you selling stuff if not careful. Don't use 3mf file format as it trackable.
If you are using Fusion and want to start selling your prints, you should pay for a license, which is pretty cheap compared to other CAD software for commercial use. I completely disagree with not using 3mf to try and hide what you are doing! Plus stl sucks!