I run additional fans on my Electronics case just to be sure of cooling.
This lid can support dual 40mm fans and one 80mm fan.
Original case design: https://www.thingiverse.com/thing:2330654/#remixes
Printer:
Anet A8
Rafts:
No
Supports:
Yes
Resolution:
.2
Infill:
25+
Notes:
The supports are there for the tabs, this ensures that they don't sag and won't fit case cleanly.