Now, we use our Set Square to fold up the shroud at the edges:
It should look like this:
We then use some clear tape to tape her up:
Using the fan grills, we mark out the screw holes for the fans with our marker:
At the same time we also mark out the blow-holes for the fans:
Now, we use our sharp tipped screwdriver and hammer a hole into our fan screwholes.
We do the same for the fan holes: