Slim power supply case

I didn't like the way the case cover was fitting so I had to do a bit of thinking and redesigning. I also made a couple of minor changes on the case itself. The cover tabs kept breaking on me and the printer just didn't like printing 2 mm walls. Getting this one right has been a challenge but I think I'm there. Cooling is very important as been using the computer case so this is why I decided to make the new larger holes.