I added 2 more cut outs in v2 for the cable ties toward the inside of the printer. I had some collisions with the x-carriage because the cable ties + mount stood out too much.
I always liked symmetrical designs, this mount is attached to the top of the z rod bracket and secured with two cable ties. They don't go through the cut outs, they are just guided by them.
You only need the other files to use with the .scad if you want to adjust stuff.
XYZprinting Da Vinci Jr. Pro
Make sure it is strong enough to support the weight of the Nema17 motor.