This is a simple mount for mounting the cover onto the prusa i3 aluminium frame (6mm). It just fits onto the frame!
I did not make the cover - it can be found here
The box is for the reprap full graphic smart controller LCD w/ SD-reader
Simply screw the mount on the cover, and place in onto the frame. Its stable and fits like a charm onto a painted aluminium frame.
I am aware of that this might reduce the printing area in the z-direction. For tall prints simply take the mount off :) Simple as that.
The filament spool holder is my design as well. Check it out here:
Simple design. Use your own parameters and what works for you.