I like this idea and am thinking about something like this, which should have room for a mill and lathe:
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First, that's a beautiful shop and thank you for posting. It's very helpful to see how others have done it.My grinding, cutoff, and welding are with in ten feet of my machines. . . . I just think all these separate rooms is just over-kill for a hobbyist. I really like the freedom of doing big jobs and having the room to do them with out the confines of walls.
Randy
THAT IS A KILLER SHOP SPACE!
Especially like all of the pump globes in the lift area...