I suggest you use the images below to create your dimensions for the ESP32 Expansion board Mounting Dimensions. Tested and configured with Tinkercad. I Couldn't find any good dimensions description online, so I had to troubleshoot my way to calculate the dimensions for the EPS32. It may not be perfect, but the mounting hole dimensions work.

The dimensions are for the center of the circle. Here are the coordinates(X,Y) Typed out, using SW as reference point. 4 mounting holes labelled SW, NW, NE, SE SW (0,0), NW (15.01, 51.01), NE (43, 51.01), SE (49, 1.5)