These are pics of one I just put together this past week for another club member. Its going on a Craftsman 12" bandsaw which had the more standard miter slot of 3/8 x 3/4. This makes it more convienent because you can use an alum tee-track extrusion for the guide bar. The t-slot makes it easier and more flexible for mounting. I lost track of the source on the blue track I'm using here, but Woodstock Int. has a red one identical to it except for color. The gold extrusion is an Incra product, it has back to back slots with built in tape channel, one channel provides for mounting to table with screws from bottom and other channels is used the red stop, which is great for repeating cut length. The center Zero scale is a $2 option, you want that. The red alum stop and the red plastic knobs are from Woodpeckers. Table in this case is 3/4" MDF, you can use any sheet material that is flat. Using t-slot track for guide bar is nice cause you can put adjustable table travel stops at either or both ends. I made the two silver travel stops from another extrusion used for putting a miter slot in a router table, most of the vendors that have t-track have this also. This is the simplest version of sliding table and what I would recommend to get started. You can also make table with the fence bar flush in table top, this would add some functionality to accommodate rip cutting, but most saws already have that so you just remove the sliding table for rips. When buying t-track don't forget the special nuts that go in the slot.