Old, just a straight edge and two clamps.

Old piece from a vacuum cleaner.

One end bolted and the other swings and clamps.

It works… 🙂 The vacuum works well (now I have a shop vac) and I have also connected the a hose to the standard router port which now it catchs 99.5% of the dust.

It now sits at the end of work bench. Fence is easily removed and the top is flush with bench increasing the work area..