That's really cool. How do you prevent the wrench from depleting? A filter to pump out empty ones into a charger and something to pump a full one back in?
And also, how do you prevent it from failing and only returning a generator? That was my problem when I was testing this.
I think this sort of reactor should be called a Break And Replace Reactor (BARR). Mostly for the fact that if you're using an absolutely full reactor, you can call it a Fully Utilized Break And Replace Reactor. FUBARR. 