Stealthburner SB2040 FLY cover for 25mm fan

Cover for 25x25x7 mm fan

Connected to FAN2 5V and gpio15, my klipper settings:

[controller_fan sb2040-fan]
##  SB2040 5V fan
pin: sb2040:gpio15
kick_start_time: 0.5  # full speed to spinn of fan
fan_speed: 0.9 #reduce speed to 90%
heater: heater_bed  # enabled when heater bed heating

Updated to V2:

• added 0,4mm more on wall to prevent artifacts on hole for fan
• reduced hole from 25,4x25,4 to 25,2x25,2 for better hold fan on place