2.2 rim with nut cover V3

I modified Blitz´s Rim to be a 2.2 rc rim with a 12mm hex
https://grabcad.com/library/ion-alloy
cover made for mounting with M2.5x12mm machine screws
update 26/03-2017
V3 version is updated for more strength,
added a 3 part sliced version
update 12/03-2017
just uploaded the sliced files
update 12/06-2017
just uploaded the V3 nut cover