Roller stands mount for the anti-vibration filament holder. This roller stand will pivot on the center bar and absorb vibrations from the inertia. The superstructure will stabilize quicker and the remaining energy will disperse with the rocking motion of this platform. The concept was taken from earthquake vibration arresting technology used in high-rise bldgs. Place this item on the upper rail of your printer -(2020 profile rail only) stand without some T5 screws the heads should just fit into the slots. this base should also have the ability to rock and not be fastly secured. It will be pinned with the mounting screws and is not going anywhere. It should be well secured but able to rock back and forth. If you use a cover to keep the filament dry- (none included here) then make a hole the same size as to allow the center rail here to go into, and place the cover between this base and the roller holder.
This base has a shelf to hold a light the one that is made to go on a 2020 profile rail. You will need 2 x 8 mm shafts and some 30 mm grooved wheels for the bearing for the rollers. I then used pencil erasers for the shaft to cushion them in the holder.