This is a zero clearance insert for an Axminster TS200 table saw. It was created in Blender and I've attached this file along with an .stl file.

I hope the screw positions are the same on all saws but if not they are relatively easy to move in blender. There is no support for the insert on the blade side of the table. I've tried to make the depth of the insert equal to the depth of the table top so if I modify the table with a support in the future the insert will sit flush on top of it.