In order to cool my SB2040 canbus-board (with extruder-driver onboard) I used to have a 30mm fan cover sitting on my Clockwork2 extruder. Now switching to Galileo2, noone seems to have designed such cover, only for smaller 25mm fans (thanks @ChadBaker_317227 for the inspiration). Thus, I made my own, based on the canboard-cover from Galileo2's JosAr usermod (G2_cable_cover_for_CAN.stl). Fans with 30x30x10mm fit into the slot.
Per JosAr on github, this should also fit similar PCBs like SB Toolhead PCB, FLY-SB-2040, EBB SB2209/SB240 and SB CAN TH.
It might also fit motor mounted boards like Huvud, FLY-SHT36/42 and EBB36/42, although the cooling might not reach properly to the boards.
The author remixed this model.
Added a 30mm fan mount to JosAr's design, for fans up to 10mm deep. @ChadBaker_317227 gave me the inspiration, so I mention him here, too.