Well I've always been a bit good at cocking things up but this is bad even for me. Just finished doing the heatsink mod on my failed 360 and it worked! Yay
So I figured since i had already voided the warranty and had it open, Ill cut a hole out and stick a fan in the lid over the heatsink.
I measured out where the 65mm fan would fit perfect between heatsink and dvd drive, found a point to measure from and started scratching out a circle with a metal compass. After about an hours scratching i got right through the case with a near perfect circle.
Great, I thought, Ill just blu tac the fan on the underside and pop the lid on to check it was ok, aaaaaand ive cut the whole on the wrong side of the point i marked out. So now I have a lovely neat hole in the lid directly over the DVD drive.
OH WELL.............................................

I measured out where the 65mm fan would fit perfect between heatsink and dvd drive, found a point to measure from and started scratching out a circle with a metal compass. After about an hours scratching i got right through the case with a near perfect circle.
Great, I thought, Ill just blu tac the fan on the underside and pop the lid on to check it was ok, aaaaaand ive cut the whole on the wrong side of the point i marked out. So now I have a lovely neat hole in the lid directly over the DVD drive.
OH WELL.............................................
