Thin ITX case

A case for Thin ITX motherboards, which can run off of an external PSU (or a PicoPSU). Accepts a single 12cm fan.
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updated November 29, 2021

Description

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Had a noname Chinese Thin ITX form factor motherboard laying around with an AMD E-450 APU, for which I couldn't find a case, which would accept a 12cm cooling fan, and would still be small enough, so I came up with my own design.

At the moment, the case doesn't fit regular Mini ITX boards, because the cutout for the I/O panel isn't high enough to fit the connectors. Thin ITX boards have a lower profile, including the rear I/O connectors. The case was designed with a such a board in mind, which has an external PSU input. You can use boards with a 20 or 24 pin ATX PSU connector, with a picoPSU, if you won't mind the power cable dangling out the back (or remixing the model). Also, there's no provision for a power button (yet), I just set my board to turn on when power is restored.

I printed the top of my case from translucent black PETG by FilamentPM (aka Plasty Mladeč) and the bottom cover from Prusament PLA Galaxy Silver.

In order to install the motherboard, you will need the following:
- 4x 10mm M3 standoffs (female-female or F-M if used with a F-F 50mm standoff)
- 4x 50mm M3 standoffs (female-male or F-F if used with a F-M 10mm standoff)
- 8x M3 8-10mm screws with a countersunk head

Installation instructions:
- Populate your motherboard with RAM and storage (M.2 SSD in my case). If the board has a small whiney CPU cooler fan, remove it from the heatsink.
- Locate the four mounting holes on the motherboard and screw together the standoffs through the board, so the shorter standoff is on the bottom of the mainboard
- Mount the 12cm fan on the bottom cover of the case. I installed it as an exhaust fan, you might want to install it in reverse, so it sucks air in. Connect the fan cable to the appropriate header on the motherboard.
- Place the bottom cover on the longer standoffs of the motherboard, align the holes with the standoffs and screw on the bottom cover.
- Place the assembly of the board and bottom cover into the top cover, and screw in the four leftover screws.

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