This weekend we finished cutting all of the metal and have tack welded quite a bit of the cab overhang section of the camper. Again, the more stuff you tack and measure square, the more things should stay square while you are fully welding the joints. The heat distortion from the welding being counteracted by all of the supporting members.
We couldn't resist trying out a sheet of 5mm Okoume marine mahagony plywood on the curve section. We have had this stuff for 20 years due to a aborted wooden sailboat build. It will be nice if we actually get to use it in a project now. It seemed to bend over the curve without steaming or kerfing.
