HP Pro/Elitedesk Micro Storage Rack

1. A remix of the great https://makerworld.com/en/models/472809-dell-optiplex-micro-storage-rack?from=search#profileId-778880
   I've remixed it because i'm an owner of 3 hp prodesk/elitedesk, and I loved the concept. As the rack was for optiplex, I made my version for the HP counterpart.

Some things have changed after many iterations from the original model:

• the support used to secure both side have been changed, so that inserts (M3x4mm) and screws (M3x10) could be used to secure the stack → indeed, the support mechanism didn't feel reliable enough, and it would fall off every time I would try to move the computers
• the rack dimensions have been changed to get a perfect fit for the hp computers: the support have been shortened, the depth of the rack too
• the height dimensions have also changed: to get the minimum possible footprint, I've reduced the size between computers, while still keeping enough to ensure easy installation/removal. The computer on the bottom has a special treatment: it has more space than the others (while on the original, every computer had the same space, leading to less space on the bottom due to the supports. Indeed, the hp elite/prodesk computer bottom is specific and has a bump, which would made it higher, and in doing so give less space to the computer at the bottom) to ensure that space between computers are always the same, and thus the airflow would be nice
• i've changed the position of the supports, because has said above, the hp pro/elitedesk has a bump, and the support would make the computer rest on it, loosing a lot of vertical space.

It's working fine for me! Printed it in PETG, gyroid pattern with 10% of infill.