An X-50 upgrade (even if it were available for the Machinist) would be total overkill. I don’t even run the 3rd rail stiffy on my machine. Even though an official X-50 upgrade isn’t available, that wouldn’t stop you from upgrading the X stepper.
I have to agree with @alldaysammyj in that this isn’t going to be a proper machine for steel, titanium, etc. unless perhaps a one-time or very seldom job. Clean-up is not fun cutting any kind of metal on the Onefinity.
Running it on the balcony… you might want to rethink that. This thing will throw chips!
