Galileo 2 Cable Cover With 3010 Blower Fan

I was getting high temperatures (over 85C) on my EBB SB2209 RP2040 board. Running the toolhead without the cover on didn't seem to help so I added a fan to the cover.

I only had 3010 blower fans to hand so I made this as an alternative to using existing covers for axial fans.

An advantage of using the blower fan is not needing to worry about cables getting trapped in the fan blades. Downside is potentially the airflow isn't as optimal but I couldn't really place the fan anywhere else without interfering with the mounting screw or other parts of the printer.

Air vents nicely out the top of the cover when the fan is on and so far it's reduced the temperature of my toolhead board by ~15C.

The fan is a push fit from the back of the cover. Thread the cable through the hole inside first. There's an additional notch in the cable hole that you can use to push the fan back out when required using an allen key or similar tool.

I wired my fan to the “IND Or FAN” header on the toolhead board with the jumper set to FAN. I wired the ground to the gpio6 pin and I'm enabling the fan in klipper when my hotend is on using the following config:

[controller_fan toolhead_fan]
pin: EBBCan:gpio6
kick_start_time: 0.5
heater: extruder
max_power: 1

Added vents and a mount for a 3010 blower fan