Sorry if this is on the wrong forum, but...

I cannibalised a pc case and a 20-year old microwave oven, in order to put the computer + disks in the oven. I loved that oven, you know, my mother bought it with her first maternity benefits with me. It's my very own michaelwave.

Anyway, the circuit board and the disks now reside in the oven. Now the two things I'm worrying about are:

1) Ventilation. the layout was of course different in the proper case. The hard drive and the CD drive are getting rather hot (I don't know if this is unusual, I didn't touch them while they were in the case. It's not really a problem to put a fan in for this.) Should the circuitboard be mounted vertically for any heat to convect away? right now it is horizontal, but with plenty of space above and below.

2) Grounding. As everything was mounted in an electrically conductive case before, and as these fittings have been replaced by plastic, wooden, or string ones, could this at all be a problem?

What should I do?
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Good luck with what seems to be an interesting project. Regarding your questions:

1. Definitely put in a fan--maybe two or three. More ventilation is better. You need air to flow through the case taking in cool (room temperature) air and exhausting the warmed air.

2. Everything that was grounded in a regular case should be grounded in the new case.