Open Frame mATX PC Case

My take on an open frame case for micro ATX
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updated January 14, 2025

Description

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This is my take on an open frame micro ATX PC case. Inspired by “ATX Open PC Frame” by Heblyz, I created this model from scratch specifically with the following features in mind:

  • Fits mATX motherboards
  • Fits larger ThermalTake 800W+ power supplies
  • Three points of connection for the power supply instead of just 2
  • Includes a PCI card stabilizer
  • Has the ability to mount it (screws) to a cabinet for use in an arcade cabinet
  • Keyed arms for less hardware use and more stability

Optional Extras

  • Mount.stl - If you need to have the case screwed down to a cabinet, but want the ability to take it off later, mount can be permanently attached, then 4 screws on the left/right attach the case to the mount.
  • Washer.stl - If you're going to print your own PC case, may as well print a handful of washers to color match when screwing down the mobo to the case?

BOM

  1. (22) 3x4.5x5mm heat sets (or 26 if using the mount)
  2. (9) M3x25mm socket head screws (or 12 if using the mount)
  3. (10) M3x6mm screws, socket or button head

Since most cases come with power switches, reset switches, LEDs, etc. you may also need those items as well. I used this power switch + power LED combo.

 

Tags



Model origin

The author remixed this model.

Differences of the remix compared to the original

Adjusted to fit mATX and create a full PC frame.

License