Adapted an import power feed to the Y axis on the Bridgeport. Nothing it came with fit the mill. It was advertised as an X feed, so I expected to have to get creative. I got a little more than I expected.
The little bearing sleeve was nowhere near the right size. So I made one on the lathe, no big deal...
The mount for the table didn't come with the bearing retainer plate I expected to mount the feed motor. Mildly annoying, but whatever. Drill and tap 2 holes in the stock retainer plate. I do wish the unit used the same bolt circle distance. The holes ended up offset to the outside edge. I was concerned about the wall thickness, but it held up. 6mm bolts. Hmmm.. Not a great sign for a 50s machine. Turns out that the keyway in the drive gear was 3mm. Pfffttt. I had a some extra keys, so I cut one down a little. So it would fit both sides.
Then needed a shaft extension to get the handle a little bit further out so that it wouldn't interfere. Mimicked the stock shaft end so the stock handle would fit. Broke a cheap 1/8 end mill cutting a keyway. Just wasn't careful enough. Thankfully I had a spare to finish up. Drilled and pinned the shaft extension and made a spacer for the handle so everything is snug when the handle is installed.
It works, so a win, but a lot more work than the more expensive Z unit from PM. Interesting project though.