Needed from the original Head, the lower 6mm wood and alu. plate. -Mono STL from ABS. -Dual STL hot PLA90/ABS and mono part PLA -2x Nut.STL -2x Cone STL -4x NutcapM3 abs/Pla90 -Threaded rod M3 1x 55 1x 75mm aprox! exact length depending on your fan mount. - flat washers, nuts and M3 bolts/screws laying around your desk.......