Here's a good blunder. I made the center pulley setup for the Atlas that Merc is getting, then made one for my Craftsman 100 exactly like it. Well, his fit perfect, mine on the other hand needed a few thousandths taken off and a groove cut in the bottom to fit in my pole. I already had it completely assembled when I figured that out... I work the bearings back out and got it apart, trimmed and cut then had to hand file the inner weld seam on my press and it's still a tight fit.
All that could have been avoided had I made mine from actual measurements like I did his, instead of duplicating. I could have easily made mine 1/4" shorter and cut to size on the first go. Measure twice...d'oh...
So I get the piece to fit, then I realize the front pulley will not line up, it's sitting way to low in the head. After some reading, Frank Lee's "Craftsman Drill Press" thread told me exactly what I needed to do to fix it so here I am now.
One step forward, three back.