I just discovered that the miter slot (not a T slot) isn't a standard size. It's 3/4" wide but only 5/16" deep. I was going to use my miter gauge with it but obviously it wouldn't work. Being for a miter gauge wood or plastic seams too weak. I looked into getting a piece of precision ground steel or aluminum but the steel seams to only be in tool steel (which would be much harder to drill and tap). So far I can't find any aluminum 5/16" thick. Does someone have a source?