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I purchased a couple sheets of perforated aluminum to try to get close to the hole diameter of the original Mac Pro Tower. The smaller size has 40% holes and the larger 50% holes (more air flow). On the 5x12 inch face/back, that gives me about 22-27 square inches of free air flow.I used a 1-1/4 inch dowel and placed the panels in my bench vise. Make sure everything is square, and bend it over to 90 degrees. Very nice roll.
I purchased a couple sheets of perforated aluminum to try to get close to the hole diameter of the original Mac Pro Tower. The smaller size has 40% holes and the larger 50% holes (more air flow). On the 5x12 inch face/back, that gives me about 22-27 square inches of free air flow.
I used a 1-1/4 inch dowel and placed the panels in my bench vise. Make sure everything is square, and bend it over to 90 degrees.
Very nice roll.
