I'll go along with those that say it's nothing new. I worked at a shop that made trim presses and tools for foundries. The presses had so many electronics on them they'd make most of your heads spin.
There are maintenance codes that our service guys enter to unlock them to do work on them, that only they know and will not share with the customer (well, it happened once, and the customer then crashed the press, busted tooling, and tried to get it under warranty....)
There are the HAAS CNC machines that after they are repaired by the service techs, lock out after so many hours and need a code to unlock them. The customer only gets the code after paying the bill. If the customer can't pay the bill, they can't run the machine to make money to pay the bill.
That's just the way it is, like it or not. I sure don't want all that on my iron, but in the modern industry, it's just a way for the manufacturer to protect they're ideas, technology, and patents.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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