Will it take all the fun away........?

[A_Camera]

.....and many people who said that aeroplanes would never "take off" (grandpa Wright?).

...the difference is that the people who didn't believe that anything heavier than air could ever fly didn't really understood the principles of flying, so you can't really compare that with a "self driving router". There are some serious problems with the principle of driving on top of the work piece. Some example:
- the mass of the machine must be huge to work at all, and that will demand quite powerful motors to drive around.
- there is going to be an issue as soon as something gets under any of the wheels.
- there is going to be an issue as soon as the work piece gets dusty.
- speed is a serious limitation, as well as accuracy.
- it will need more than just three sets of wheels to be able to move accurately in any direction.
- the surface must be even, so in practical reality, I think the maximum work area is limited to the distance between the wheels.
- the milled surface pattern must be pretty simple, for example sign making/engraving.
- what about fixture? Smaller pieces can't be milled.

In other word, an expensive and cool toy with limited usability. Possible to make it but will not replace table top or larger CNC routers. Not really comparable with airplanes ability to fly.