Prusa i3 NEMA23 motors

Hi
this things not test yet
change motor to nema 23 for more speed and power
i want to change that for use prusa i3 as a mini mill cnc if finish it upload some pics of that
change belt hole to 12 mm fol XL size belt
this thing design for m8 screw but if you want to use m5 can print conwerter to conver m8 to m5
and for last this tning not print yet
its my frist redesign sometings
thank you