Bridgeport Mill - How do you know what speed to run the new(er) table feed?

[tomato coupe]

Then explain the 10ipm for steel and 50 and 100ipm for aluminum. (Using a fly cutter.)

You want a guy unfamiliar with a Bridgeport mill to cut at feed rates of 50 or 100 ipm? If I could coin a new term, it would be antiprudence.

[lakeside53]

That's an entirely different answer to the question you posed. 10 IPM is not a reasonable maximum for the BP. Higher than that is not just the realm of "bigger, more rigid machines".

Operator experience is a different issue entirely, but that comes quickly without the need for training wheels. The low limit of the ancient power feed is relic of the times - pre-carbide and almost pre-AL alloys.