Modified and split Z-stage for Ultimaker 2 Aluminum Extrusion 3D printer

Been working on the "Ultimaker 2 Aluminum Extrusion 3D printer" on a small printer, so I had to split up the parts to be able to print them.

There are 2 different top and two different bottom pieces. The names should clearly indicate what it is. There are 2 different bottom middel pieces (motor-Mount) where one is shortened a bit in case the 3 pieces making up the bottom gets a bit wide.

Changes:
Top
1.1) Top of Z-stage has been split in two.
1.2) Added a hole for an M3 screw for ea