Not sure - some tools can make you do things you couldn't before, or do them better. There is no way to simulate high temp/steam/low temp cycles without a progr

Not sure - some tools can make you do things you couldn't before, or do them better. There is no way to simulate high temp/steam/low temp cycles without a programmable steam oven, and some types of joints are near impossible without elaborate jigs or tools. I don't think being a pro or hobbyist is the difference here. The OP seems like a cool thing to build, but it seems like a solution looking for a problem too. Plenty of bread enthousiasts just like the smell and taste of fresh bread, which they can't get from the store, and the easiest way to get that, will do. Just like some people might like nicely dovetailed cabinets with tight glueless joints, and will use anything to get that, as you can't buy that sort of thing. Not sure what my point is or where I'm going with this. Many things are highly inefficient to do yourself. People still do them. Does that mean you always have to use the most low tech methods? People have different desires and goals and objectives. I wouldn't spend my money betting on the OP being a great market success, but then again, there are quite a number of 3d printer companies, who also build niche tools, that seem to survive...