I had really long cables and it was very tight inside the electronic box, so I remixed the cover and made it bigger.

Right Z-Motor should be able to pass by the cover.

Printing with supports and part laying on the cooling-openings.

Make sure to check if the screw does not hit the Z motor! I used a flat head M3 screw to mount the cover. 

Have a cable-mess-free time

Anxodia