I remember seeing a post that I cannot find right now that was asking for the dimensions of the Bosch/Mafell tracks. At the time I had lost my data on my system that I use to make a CAD model of it. I just remade the model for myself for jig making again and I’m uploading the dimensions.
Units are in millimeters. Numbers in parenthesis are for reference. The anti splinter strip and groove that it sits in are simplified in this model. I cannot guarantee the accuracy of these numbers and if your rails are slightly different due to tolerances but in practice I doubt there’s a need to work at machining tolerances for jigs.