In 1998 I bought a Bridgeport Mill from a machinist who had attempted to retrofit the machine with 2-axis CNC. He was never quite satisfied with the machine's performance and finally unloaded it on me! Happily, I added the third axis and now have a 3-axis beast, as capable with metal as I have previously been only with wood.

Although I have not used the Bridgeport as much as my plasma torch or my engraver, I have milled a few things out of aluminum: