Holder to mount Filadry unit to 3030 extrusion of Hypercube Evolution (HEVO) or any other 3030. I haven't tried it on 2020 but I think it would work in most cases. I felt the holder is necessary to keep the Filadry stable because it can easily be pulled on by the motion of the filament. I also recommend using a rubber band or other elastic band to secure the Filadry Unit.
Supports recommended for areas that have bridging.