Enclosed ZimaBlade NAS case 2x3.5" HDD (designed for PoE adapter)

Requirements:

• 80mm fan (designed for Noctua NF-A8 PWM)

  • JST GH 1.25mm 4pin male -> fan adapter (you will probably have to improve and create your own)

• 2x5.7mm M3 heat inserts (designed for CNC kitchen M3 x 5.7, but deeper or shallower will work)

• 2x40m M3 screws (Prusa printer spares work)

• Preferred: Procet PT-PTC-BT 60W PoE to USB-C

• Optional: nylon 200 mesh (0.1mm thick)

Printing

Everything is FDM print optimized to print without slicer supports. It also contains features against warping and to ensure seams are placed in the most hidden locations. Please note while I made this case as small as I could, you will still end up using around 400g for the base, lid and filter ring and around 100g for the optional wall mount.

Lid, base and filter ring:

• Layer height 0.2mm

• Nozzle size 0.4mm

• Perimeters 3

• Infill gyroid 10%

• PETG (I used PETG V0 for safety) or anything else that has high temperature resistance

  • Prefers mat filament to hide any imperfections in the walls

Given the size of these prints, clean your build plate well (maybe give it a good soapy wash with hot water) to maximize the stickiness. You can give the base a brim, its easy to remove.

HDD sliders (2x):

• Layer height 0.2mm

• Nozzle size 0.4mm

• Perimeters 3

• Infill 0%

• TPU

Optional (wall) mount:

• Layer height 0.25mm

• Nozzle size any

• Perimeters 5

• Infill 100%

• PETG (same as base to ensure same hardness)

Hardware

Fan + filter

It takes an 80mm fan (which I assume is required wen running two HDDs) and I went with an Noctua NF-A8 PWM. Therefore the depth is 27mm, if you want to use a 25mm fan, either design a quick 2mm padding "ring" or let me know.

The hardest part is going from the 4 pin JST GH 1.25mm connector on ZimaBlade to a fan header. Crimping these cables is horrible, I ended up buying a pre-crimped set of wires and headers from any of the chines platform. While I crimped on these small wires molex fan male pins, that was not the best idea (had to solder them to ensure they were secured). You are probably better off also using pre-crimped male fan extension cable and solder the wires together.

There is room to insert nylon mesh (I went for 200mesh) between the filter ring and the fan to have filter intake. The best approach is to lay the mesh down, press the filter ring (HARD) and just before it is fully down, use a knife to cut of the excess against the filter ring. This way there are no cut marks on the case itself.

Cables/POE adapter

Originally designed to hold a https://www.procetpoe.com/60w-poe-to-usb-c/usb-c-poe-splitter-ieee802.3bt.html to have a single exposed ethernet port. However, it seems this adapter is quite hard to get.

One idea I had is to make an alternative version (instead of the ethernet hole) that has a slot that you can slide in a keystone "plate" (for the different keystone standards) so you can route the USB-C and Ehternet port from the ZimaBlade to the outside.

Obviously, you can also just plug in USB-C + Ethernet cable straight into the ZimaBlade and route the cables outside via the ethernet hole.