I have a smaller mill. I grew up with a machine shop in our barn. We built liquid ox trailers in there among other things. Had a small lathe like I have (flat leather belt drive and had to actually remove and replace the back gears like mine) and we also had one with about a 12' table and the chuck was about 3' in dia. We had a shaper and many other tools I won't go into. I learned quite a bit but am not a machinist.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!