Joe, I just googled the Singer 348 and found bunch of u-tubes on it. The first one, although I didn't watch it as I have dial-up, said that it takes flat cams and is all metal. I just might have to go and look at it. It comes in a cabinet, and all of my machines to date are all portables. I at least want to see it. Will let you know what I find out.....
Janis