This picture was taken after-the-fact, so you need to use your imagination to understand how this works. Install the table on temporary riser blocks (this is necessary to allow clearance for the router bit between the table saw and extension table). Temporarily place the Aluminum T-Track in...
Location of the two T-slot Aluminum Miter gauge tracks must be dead on. The gap between the miter bar and the track is 0.005" on either side. The template was made for use with a top-bearing 1/4' height template bit.
Angle iron attached to mounting block with 1/4'' bolt and T-nut. Mounting blocks are screwed, and glued, to table. Top is 5/8'' particle board covered with laminate. Underside of table is reinforced with 5/8'' x 1-1/2'' particle board.
1-1/4'' x 3/16'' heavy-duty angle iron table support. Short pieces of angle iron are used to attach the table support to existing holes in the table saw. Note shims (washers) between angle iron and table top assembly.