I watched your video and I just wanted to say that it looks really good. It could very easily be used instead of i.e. SolidWorks to make basic parts. I am very impressed that you were able to do this mostly on your own.

Maybe you could get some momentum with it in the 3D printing community if you made a nice website for it and did a YouTube series i.e. "How to design and print a phone holder" or things like that.

Does it have assembly mode? I imagine implementing Assembly constraints would be very difficult.