yea, it's not recomended for a novalice to try it on a fender. i've been welding for over 6 years and sheet metal is no breeze, especially if it's an exterior body panel, you could tack it pretty easy and use filler to finish it up. but i wouldn't recoment waisting the time, money, and effort to diy on this one. i wouldn't wont to and i welded and fabricated for a living.