I printed the "CUSH - Custom Spool Holder" for my Tevo Tornado but found that it wasn't wide enough for my box and the narrow base made them pretty wobbly.
The width of the controller box is 152mm (up from 150mm)
The base of these when snapped together is over an inch making them much more stable.
Added a ring on the inside to stop the spool from riding on the seam between the bearing and plastic frame
Added a conical cutout to reduce material needs (and it looks cool)
There are 2 different sides, I would suggest printing at least 2 of the short sided pieces for the inside (under) of the spool so that the side doesn't rub the filament when the spool is full.