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Step 2Remove bottom of tin
Using the small 70mm fan guard as a template, drill 4 holes in the tin slightly inside the screw holes. They don't need to be perfect, but they should be close.
After you have the holes use a Dremel tool and cutting wheel to remove the center of the tin, leaving 2-3mm of metal around the holes you just drilled. Remove enough metal so that the "tabs" with the 4 holes can easily bend outwards without altering the shape of the tin or breaking off. When the metal is removed bend these tabs out slightly (~15 degrees)
Be careful of the sharp edges when you are cutting and bending, and always wear appropriate safety gear!
After you have the holes use a Dremel tool and cutting wheel to remove the center of the tin, leaving 2-3mm of metal around the holes you just drilled. Remove enough metal so that the "tabs" with the 4 holes can easily bend outwards without altering the shape of the tin or breaking off. When the metal is removed bend these tabs out slightly (~15 degrees)
Be careful of the sharp edges when you are cutting and bending, and always wear appropriate safety gear!
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