I made my own from melamine. It's been a while but I think I used contact cement to glue the two layers together. Mine is approximately 16 x 31 inches. I routed a 4 x 6 in. recess in the top layer to accept 1/2 in. MDF inserts. The holes in the corner of the recess are for removing the inserts. The cut-out on the rear right allows clearance for the elevation crank. There's a cut-out on the rear left to allow access to the table lock. The six holes at the front are for the old Black and Decker Workmate hold-down clamps (no longer available). Some other clamping method could be used. If I need a fence, I just use a straight-edge and clamps.
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It's attached to the drill press table with carriage bolts, washers and wingnuts.
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Jack's Disclaimer: When I say something.... always ask yourself ..... "What the hell does he know?" _
Guys - learn to disable the flash on your digital cameras.