I thought I’d share a little project I made this weekend. The story starts with a little trauma, as I discovered last week that my computer backup was throwing away versions more than a month old, and I needed a group of files that had been inadvertently deleted from prior to January. While enough work, and begging others for copies, could restore those files, I obviously needed a better backup system in place. I did start an account with an online provider for emergencies that require restoration from off-site, but I don’t want to pay them to access my files if not absolutely necessary.
I ran across Jeff Geerling’s Project Mini Rack, and thought about a CNC version of the 10" rack to store my home backup solution. (Note - this allowed me to use the CNC in the shop and ignore the fact that my files were still at risk 
).
I need to recut the top because the holes are misaligned, but I’m generally happy with the result.
It’s completely overbuilt, but the bolts and extrusions in the frame, and a 5V power supply are all recycled from an older 3D printer. The aluminum is all offcuts purchased by the pound. So the acrylic panels were purchased as blanks from Amazon and the filament for the handles and mounts are the only new purchases to complete the structure.
The holes are all tapped for 10-32 because my son wants them cross compatible with his store bought mini rack. (Despite 6mm being the clear winner from my perspective.)
It’s designed to be 12U high, but I didn’t specifically make any other allowances. I do think once I have some small printed feet in place, that I’ll put a panel on the lowest extrusion and hang a 120 mm fan underneath. Potentially I’ll control it with a thermostat so it only runs when needed.
Sigh - I guess it’s time to actually build the NAS and solve the original problem. 
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