I recently received the EIBOS Tetras and absolutely hated the way they chose to mount the electronics and the screens to the AMS. This is a big base unit that screws in the AMS, like the original base, but provides a solid unit for your AMS to stand on. Yes, it uses about 450-500gr. of plastic, but I believe it's worth it. 

To use it, print each of the four base parts, remove the supports and use M3 nuts and M3x10 SHCS (or BHCS, whatever you choose). EIBOS also provide you with a 8x8 strip of rubber. Cut that into 20mm strips and insert in place in the 5 provided cut outs. 

When mounting the screens to the new screen mount - reuse the original mounting hardware.

The base mounts to the AMS with the original EIBOS Tetras screws.

QUICK NOTE:

While the provided print profile is for PLA, it's the only filament I had left at the time. I would recommend this be printed out of PETG, just in case!
 

V2 IS OUT NOW! 

While some parts of it are still backwards compatible I recommend it be reprinted entirely. The model has been optimized. Some changes were made to the electronics compartment, a lid was added (with holes for passive ventilation), a little lip that catches the power socket and prevents it from bending. 

On my photos you will notice one of the photos you will notice one of the screens is missing  - I sadly dropped and broke it. These things are fragile! BE CAREFUL!