Raise the blade on the table saw and cut through the center of the constructed cradle. Stop the cut a few inches from the end.

Cut and apply glue to the edge of a one-by-three as long as the cradle is wide. You will attach it and another identical piece as fences. Set the one-by-three glue-edge down on the rear edge of the plywood cradle, using a framing square to ensure that it is perpendicular to the saw blade. Clamp it, turn it over, and secure the fence with finish nails.

Continue by making another fence, this time attaching it to the front edge of the cradle.

The cradle is now ready, and slides with the platform of the table saw. Its rear fence will enable very accurate straight cuts.