i know that the axis cube it's done from a hexagonal dipyramid 3x3 ,now that i have a 5x5 hexagonal dipyramid i think if i can extend it somehow to make a 5x5 axis cube.somebody know or have ideea how should i extend the faces to obtain the master axis cube?

It has already been done.

viewtopic.php?f=15&t=14063&hilit=axis+master+professor

Sorry man