Outfeed Roller Top for ZAG Folding Sawhorse

Small update:
Having used this for a while now, I made the following experience-based change: I would recommend splitting the roller into two or more pieces (with the relevant quantity of extra bearings and holders, obviously!). This helps with handling the workpiece on the odd occasion where you didn't quite get the roller square to the table.
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This is a simple saw table outfeed roller, designed to sit on the top of a ZAG folding sawhor