WMD Part II by G-gnome

Shroud

The intake side of the radiator has an aluminium shroud which sits against the end of the case, ensuring that the only air passing through the rad is cool air from the outside of the case. I began by making a cardboard model of the shroud (drawn in Adobe Illustrator and printed out), with the folds being scored with the back edge of a craft knife.



It was a good fit. I also marked on the model, the positions of all the screw holes that would attach the final shroud to the 10mm steel rim that ran around the front of the radiator for just this purpose. These were drilled and tapped to M4.



The actual shroud was cut out of aluminium and the corners of the short pieces, and sides of the long pieces, were bent to the correct angle in my bending brake. I taped the shroud together to check the fit, then removed it and marked the radiator, for drilling the screw holes to attach it.



The pieces were polished, lacquered and four corner-pieces were made, before the whole lot was assembled - perfect fit.



The shroud is held on by very short M4 stainless steel screws (4mm or 6mm thread length I think they were). Same with the corner pieces.

The reason the shroud had to be such an odd shape with corners 'cut off', and not simply rectangular, is due to the inside curve of the case where it will be mounted.