Think I know the answer to this, but got conflicting data when picking up some hardwood today.
Can a drum sander straighten wood like a jointer can to get a perfectly flat face, then flip it and get two flat parallel faces? In other words, can a large industrial drum sander replace the steps of jointing and planing wood? Is it a partial solution, or do you get the same effect as taking non-jointed wood and running it through a planer (parallel, but not necessarily straight.)
If not, what is the basic purpose of a drum sander (to reduce the work of using power orbital sanders to surface the wood?)