Things You'll Need
Instructions
Remove the tabletop from the folding support assembly using the screwdriver. The type of screws that hold the top to the frame will determine whether you need to use a regular or Phillips screwdriver. Save the screws and carry the tabletop away (it will not be used for this project and may be recycled, stored or discarded). Do not disassemble the support assembly beyond removing the screws attaching it to the tabletop. Collapsing the folding legs is optional at this point.
Lay the sheet of plywood on the floor. Turn the folding support assembly upside down and lay it on the plywood. Using the yardstick, center the support assembly exactly on the plywood sheet. Stick the pencil through the holes from which the screws were removed and mark each screw-hole on the plywood. Pick up the support assembly and move it to one side.
Select a drill bit that is slightly smaller than the screws that were removed and secure it to the drill with a chuck. Drill a shallow hole (no deeper than 1/4 inch) in the plywood at each pencil mark to serve as a starter hole for the screw. Unplug the drill and put it away, as it will no longer be needed.
Pick up the support assembly (still upside down) and re-center it over the screw holes. Place a screw in each drilled hole and rotate clockwise by hand until it becomes too tight to continue. Use the screwdriver to tighten each screw snugly.
Pick up the table, flip it over, and set it down. The table is now complete and ready to be built into a train layout.