I made the table top of the table in my camper van foldable, so i can make it bigger or smaller to suit my needs. The type of table top is also often used in Marine Yachts. Often the 'wings' of these tables need support when deploid. I used 15x15x1.5mm aluminium bars to make this happen. The 3d printed parts are endcaps with a 1mm raise at one side, U formed 'glide'brackets and some rounded end caps eliminating sharp edges. I printed al these parts in ABS