Once you've made a tray it needs to be covered. I use two methods in covering trays. I demonstrate the first in this video, which is a tray that needs a solid top. For instance, a lid of a box. The second method is when the lid does not need to be solid. It might be the trays of a clamshell enclosure, where the trays are attached to a case. To cover in this case, the walls can be covered by a piece of material that wraps around the tray. I will demonstrate this in the next video. I'll also make a short video on how to line the inside of the top of a tray.