I'm in the process of doing just that kind of jig that slides along the table edges. The Grizzly table edges are parallel but the span is such that I need a bar to follow the miter gauge slot to maintain a straight line, and the miter gauge is my first try though may see if I can find some decent bar stock or rails on line. Wood rails to me are iffy
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QUOTE=DaninVan;2096489]If you want to go the setscrew route, use brass set screws. Problem solved.[/QUOTE]
If I had a few in my collection of fasteners, for sure that would be the way to go. We are in a high COVID-19 contagion area and 'that age bracket' soare hunkered down for the duration and wont wander the local hardware stores for a while. The steel set screws will need to do the job for a while
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Roofner - Agree that a saw sled would work well for 90* cuts but odd angles are a PITA so use my INCRA