Edit 2/14/24: Updated wiring/config for proper signal to the fan. Cpap will no longer kick on from power-on until OS is booted.
#CPAP
[fan]
pin: PE5
kick_start_time: 0.2
off_below: 0.2
cycle_time: 0.005
shutdown_speed: 0
max_power: 1
hardware_pwm: False
Edit 2/11/24: I updated the standard model by moving the duct's inlet further forward to better clear the rear of the printer. Thanks for the user input so far.
This duct is designed to work with the Bondtech LGX Lite extruder, as well as a version for Flsun, Orbiter, etc. Designed for m3 threaded inserts to hold the duct body to your current lower fan ducts (Factory or improved ‘factory style’). Also uses one to hold the hose in place. I just screwed the fan mount to the printed top cover. I've included my config files as well as a link below w some more information for installing.
I printed mine in the same orientation it sits in when printing, just some small tree supports for the base.
The author marked this model as their own original creation.