The exhaust fan in my printer enclosure is thermostatically controlled, with all the electronics concealed in the hollow of the Lack table top.
This housing encloses the instrument and the addition of a small vent should prevent heat build-up in the cavity below, where the voltage converter for the fan and lighting system is located.
Print face-down, with supports in the instrument recess only.
This example is in PLA 0.2mm QUALITY mode with a 0.4mm nozzle.
The author marked this model as their own original creation.