For this project I assemble six flat rectangular panels of Nidacore honeycomb core material into a box that my generator will fit inside. I show how to round the corners so fiberglass can lay flat going around the corner. Also shown is a way to build up layers of fairing or gelcoat without sanding through and having to build up again. You see several techniques for filling the edges of the honeycomb and how to precisely adjust doors and their frames to be a tight, precise fit.