Humans tend to believe that the same trends will continue in the same way regardless of circumstances. A trend will get everlastingly worse or better with nothing changing. The fact is that every trend is susceptible to outside factors. Here’s a case in point.
Ever make a circuit board? I used to do it in high school. It was not much fun really. First you had to coat the boards with a special coating that was sensitive to UV light. Then you had to make a transparency mask of your board. You then exposed the board to transfer the circuit diagram to the board. Now comes the nasty part. You put the board into an acid bath to etch the board, removing the copper where you did not need it. Dealing with the etchant was very messy.
In 1985. Here’s a pdf explaining the facility. The facility seems to be gone.
Making lots of chips
I have a Sherline mill that I probably should convert CNC. One problem right now is that I have very little shop space. Admittedly John Saunders of NYC CNC was able to manage
For a CNC setup I need a more or less permanent space that I can have a stable area and an enclosure. Considering my night owl habits I may not to want it to be in the same room with my bed. In any case, I also have to consider the options.
I like these machining demos. They give you a feel for what can be done.