They are just flat cams but you have to be able to fit them on the shaft and be the correct diameter. Those are very nice machines. Don't forget to thread the bobbin case hole. I have an 82 but let the good one go to a little gal who ssssoooooo needed it. The one I had came with all the attachments and some extra disks. My favorite attachment was the darning/free motion foot. I was able to use regular needles in my machine but it really should take round shaft needles.