I've got an Alden ZZ machine with 30 + patterns on the dial. Really neat machine with lots of great patterns. By the time you alter the needle position and other settings you can do about 90 + variations on it. I was thrilled with it until I found the cam stack was plastic. Since then I've hardly touched it. When it finally breaks the machine is junk. I can't even find a mention of the brand name ALDEN or an owners manual even. So parts would be a practical impossibility.
Joe