Salem,When I first bought my sawstop I thought I would make my own inserts. After using them for a while I will buy them. They are awesome. They swap out in seconds, register flat, and hold down safely. Plus with the way the arbor moves I don't need many. You could live with one for both vertical and angled cuts.
Yes that answers my questions. Thanks! My order is placed...looking forward to trying it :>Hi, Chris.
A slot is cut in the wood insert for the riving knife, just like the stock plates. There is a wider slot in the wood insert for the riving knife travel (where the stock slot is) which leads into the zero-clearance slot, also like the stock plate once the full zero-clearance slot has been cut. Bottom support for the wood insert (so that it doesn't collapse inward) comes from the wide-bottomed dovetailed slots (throughout), full stock in the front (infeed side: clearance between the blade's full extension and the remaining wood insert between the zero-clearance slot and frontmost section of insert), and the flat bottom adjacent to the riving knife. A slight bevel should be put on the right side of the riving knife clearance slot for full tilt clearance.
We were initially wanting the woodworker to make the riving knife slot, but Infinity Tools wants us to do it with one of the two inserts that come with the plate, for immediate use and for a template. I think that's a good idea. As you know, many people prefer to take off the riving knife, so the other insert that comes with the plate is un-cut.
Does that answer your question?
We've been using 1/4" pressboard with a thin melamine surface (on both top and bottom) for the insert and it works great. That is the insert that comes with the plate.