gather these parts

Slot side hook rails into the backer as shown. Make sure the detail on the backer is facing the back

Glue the 5 plates alternating between smooth and toothed into the long slot in the backer plate

Glue hatch plate in at an angle as shown. The top will protrude into the contoured hole in the backer plate.

Glue together the three layers of the light arc as shown. Make sure the notches on the underside and the sharp points at the end are all lined up. We suggest using white glue to make sure you have time to line each up.

Glue the light arc into the slot at the top of the backer plate

Glue acrylic light bars in place as shown. Use minimal superglue as not to fog the acrylic.