Quote Originally Posted by Web Goblin View Post
As for milling steel I wouldn't even think about it.
I think you used the key word there, "milling", for me I think of router for wood, plastic, foam, etc. and for metal I think of milling machine. When you look at some of the builds on this site though I can see how a router could tackle softer metal such as aluminium if strength and stiffness is built into the machine.