Odroid H2 blade rack

Odroid H2 blade rack
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This is my design of a blade rack for Odroid h2 https://www.hardkernel.com/shop/odroid-h2/.
It is 4U high including about 1cm above and below for airflow, each bay has a 40mm fan, I used (http://www.fractal-design.com/home/product/casefans/silent-series-r3/silent-series-r3-40mm), spacing of fan holes should be 32x32mm.
It will host 7 Odroid H2 units. In future releases I might replace one of the bays to mount power supplies for the fans and maybe the H2's.
I use them for virtualization with Ovirt (http://www.ovirt.org).
Blades are designed to use hardkernels power button (https://www.hardkernel.com/shop/led-power-button/).

Printable Parts
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### Bay Parts
Bay.stl 7
Bay-Cable-Holder.stl 7
Bay-Slider.stl 14
Bay-Tag.stl 7
Bay-Tag-1.stl Used for MMU printing with Bay-Tag.stl
Bay-Tag-2.stl Used for MMU printing with Bay-Tag.stl
Bay-Tag-3.stl Used for MMU printing with Bay-Tag.stl
Bay-Tag-4.stl Used for MMU p