Electrical Panel Lock

On electrical panels the locks use a cross key to open them. The Rittal panel lock uses a cast lock barrel with breaks always in the same place. Unfortunately with this design of lock the barrel hols the whole lock together and if left the whole lock mechanism is lost requiring total replacement. I replicated the lock barrel in tinkercad and then tapped all the way through the print for an M4 bolt which holds it all together and is strong.