ATX Expansion Case for Framework Laptop 12 Mainboard - Updated v1.2

Overview

This is a simple chassis to mount a Framework Laptop 12 mainboard inside a standard ATX pc case or open frame chassis.

The idea being it can exist within a larger PC and act as a streaming/encoding machine. A smaller workhorse tucked away inside with all ports accessible from the expansion slots side.

Printable Parts

Expansion Slot Bracket

The main interface point. Print it flat-side down.

Power Switch Flange

Printed on its side.

Slimline Lid

Printed flat. (Either side)

Baseplate

The baseplate has three options; two of them have pcie slot flanges to act as a support to prevent sagging. Printed flate-side down.

Three kinds:

• No PCIE Mount

• PCIE x4 Mount

• PCIEx16 Mount

Non-printable Parts

• 10x M3x8mm screws countersunk

• 2x USB-C 180 degree extension cables: https://www.amazon.com.au/Xiwai-Degree-Angled-Female-Extension/dp/B09BHP7ZGV/ref=sr_1_3_sspa

Assembly

Assembly is straight forward.

The  expansion slot bracket may need to have the end two flanges bent (roughly 5 degrees to be in spec) at the creases marked on them, a bit of heat and/or slow pressure is enough to do it. It may also seem that the piece is too thin and flimsy to work but once it is bolted to the baseplate it'll have enough rigidity to do its duty.

First step is to sandwich the power switch flange in-between the expansion slot bracket and the baseplate.

Use 6x M3 screws to affix them together from the expansion slot bracket, one going through the power switch flange.

Place the lid on top of the baseplate; Use the remaining 4x M3 screws to affix the lid to the baseplate.

Plug in the two 180 degree USB-C extensions and screw their opposing ends into the expansion slot bracket using their provided #4-40 screws.

Change log

Update v1.2

• Added alternate power switch/toggle models for lid and power switch flange

Update v1.1

• Slightly reduced PCIE blade thickness

• Update power button contact point