Cited as a reference · for some experience
Takaya 9600 flying probe tester dual side
Why people recommend it
Shown as an example of the automated flying probe testers used in PCB production, mainly to illustrate what such equipment costs and does.
Watch for: Illustrative, not a tutorial
In their words
These automated processes can vary from pick and place machines to visual inspection and flying probes.
Wesley Lee on electronics.stackexchange.com, May 2016. CC BY-SA.
If you believe this is simple, you can start your own business and compete with Keysight, and a bunch of European (watch this), Japanese, Chinese, and other companies.
Ale..chenski on electronics.stackexchange.com, Jun 2017. CC BY-SA.