I needed a way to locate and cut holes in a Magnetic sheet to be fitted to a RatRig V-Minion build table…..My table and magnetic sheet are 185mm by 185mm…. So, I made the jig outer edges 185mm by 185mm….I used the dimensions giving in the build guide for the hole locations….Holes in the jig are 10mm diameter

***added the Fusion360 file in case someone wanted to change the hole size