I upgraded my Tevo Tornado with some hardware additions and a Lerdge-K board with a touchscreen monitor. 

Because the cables and the monitor take more space, a bigger boardcase is needed. So I designed three pieces that can be attached to the existing case and make it 6 cm longer.

One of the three pieces serves to keep in place the new monitor internally to the case.

All the holes are a bit smaller so that you can thread them with a screw. 

Just to let you know, the 3D printed pieces are not sufficient to install successfully the Lerdge-K board in the Tevo Tornado case as you probably need to make new holes in the metal case.

Also, the piece “prolunga sotto” which is the part that covers the bottom side, needs two holes corresponding to the two anterior rubber feet.

Print in PLA or PETG, no supports needed.