BigBox electronics cover fan

In an effort to make the BigBox quieter, I replaced the standard 50x50x10 mm fan with a 80x80x15 model, and let it run on half speed by placing a resistor in one of the wires. The designs in this post include the fan guard, the knob and the lid. You can find the hinges here: https://forum.e3d-online.com/index.php?threads/hinges-for-electronics-cover.1243/