Thank You, for the comments. At least 6 years ago I also wanted to do things like this, I tried many desktop CAD softwares and was unable to do very much at all. I all but gave up. For one reason or another my interest started peaking again over the last 2-3 years and I would dabble with CAD but still couldn’t produce anything of my own, I would only lightly modify others work.
Back in February of 2017 I started looking for a way to do this with the use of a tablet and pen. During this search I came across Shapr3D and gave it a shot (See Story Here).
Now here we are about 7 months later and I am creating many of the things I had wanted to create. I don’t think I am at a point to create full tutorials as I am still experimenting on how things are done, and sometimes a simple part takes me many tries, I have much to learn. However, if you need help with how to do something I encourage you to look at the tutorial videos, and if they do not help, post here in the forums as many of us are always trying to help out.