The sweet spot for me is an Idea -> CAD -> Manual Production -> Idea loop, which works for pretty much any hobby that results in a physical artifact. The compu

The sweet spot for me is an Idea -> CAD -> Manual Production -> Idea loop, which works for pretty much any hobby that results in a physical artifact. The computer work lets me spot enough problems that I can feel confident the end result will be worth the effort, and I'm not going to hit a dead-end.