Dewalt DW705 Compound Miter Saw Zero Clearance Insert. May fit other similar saws

It fits tightly and flush. I included the Prusa Slicer Project file. I added a modifier to the central area to ensure it remains solid in the cut-through region. Printed using PETG, I opted not to use the standard recessed areas for the screw heads, opting instead for counterboring only. This makes it easier to add support structures, as the supports are concealed by the screws and there are fewer areas where dust can accumulate.

Remove the rotating saw slightly and replace it to access the two screws at the back. The screws are Torx type.