Anybody ever build a frame with one of these HF flux welders? I recently picked up a Chicago 125 Flux harbor freight welder for $70 on OfferUp. Only 3 weeks old. It already had an upgraded ground clamp and new wire. Been welding on some scrap metal to practice, and also welded a crack on my kart's frame, but I'm just wondering if this welder would be good enough to weld together a whole frame with.