Your comment really touched me it's very nice AnG3L: Yes, it's true that the case will not be light at the end. Now, he weighs about 9kg. At least it does not vibrate! So as promised the update of the hard disk support: Already cut the sheet with the shear and pointing holes for the slots that will to escape the hot air upwards. Then i have drilling the hole: After I trace the grooves to be able to guide me with the jigsaw And cutting: It's the support with its final form: Now the conventional polishing, and then drillingthe holes for fixation. I then create my guides for the supports hard disks in the bars "U" aluminum. While the top bars are simply cut to 120mm, the bottom ones are a bit more sophisticated I drilled a hole to put a stop pin to lock the support to forward and I also folded a piece of aluminum at the back for not pushing too far the support. And a picture to show you the interior space of the support, And now the pictures in the box: The seal in the location of the power supply. And support for hard disk: Finally, an overall picture: So much for today, next big step, support of the motherboard.