Fusion360
Tried out FreeCad/Ondsel, and just couldn't get it to cooperate. Trying to do even basic changes would constantly result in errors/crashes. I spent maybe two weeks trying to make a single model. Then I tried making the same model in Fusion360 and was done in an half an hour. Granted, there is a huge difference in experience level here between these pieces of software, but still.
So I think my best bet for now is a jailbroken copy of Fusion360.