Tonight I finished up the major construction on the cowling by riviting the piano hinges to the cowling. I started by setting up the countersink and countersinking the fiberglass. I borrowed a friends pneumatic squeezer to squeeze the rivits. That helped a ton and my hands thanked me for not having to hand sqeeze all those rivits. I re-installed the cowling and it looks great. Just before I installed the cowling I made a template to mark the location of the dipstick door. I traced it onto the cowling after install and when I have some time I will cut it out and install an aluminum door using some spare piano hinge. All in all a good day