It's been very hot here and my cd rom which I was using was having a few hiccups. So I thought I modify the cover a bit more. I'm adding a few more cooling holes on the top to make sure all the hot air has more places to exit. I'm actually using the 3d printed case and keep improving it where I can. That's the neat part about designing and printing my own case. I can make as many or few changes as I need.