Raspberry Pi 3 Drive Bay Mount/Case

by brandonforty2, published

Raspberry Pi 3 Drive Bay Mount/Case by brandonforty2 Jul 9, 2016

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One day I looked at my computer and thought, how can I make this meta? I decided putting a "computer inside of a computer" would be enough. This is a Raspberry Pi 3 Case that fits inside of a 5.25" drive bay. It follows the CD drive standards so it should fit in any computer case with drive bays. The only tested case is an Antec 900.

Print Settings

Printer Brand:



Prusa i3






This was designed so it doesn't need supports if printed how the model is already positioned. It should be sitting on the face.


Put the Pi on the Mount

Attach the Raspberry Pi to the mount. The case was designed to allow M2.5 screws but I have not tested that. I can confirm that Zip ties do work. Put your preferred attaching method through the mounting holes on the Pi and mount.

Put the Mount in the Case

Attach the HDMI and power wire to the Pi. I would recommend to loop the power wire around the mount, as seen in the below picture, in case the Pi becomes unattached from the mount when plugging something into it. This should prevent the Pi from flying around your PC case and damaging stuff. Next, slide the Pi into your case. You can use M3 screws to secure the Mount into your case as seen below.

I was able to route the cables out the back of the case. Another option is to connect the Pi to a 5v molex line and SSH into it so the entire system is contained inside the PC case.

How I Designed This

  1. I used Autodesk Inventor to model a drive bay cover based off of these schematics.
  2. I created the Pi mount from this model
  3. I 3D printed it and made changes to create a finished mount.

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Combine this with the RAMPS mounts for 3.5" drive bays, MOSFET mounts for 3.5" bays etc and you could pretty much build all the brains for your printer into the case and save on a power supply... or just protect the electronics from overheating in an enclosed printer without needing a case for them. Octoprint on the pi, 7" LCD on the side of your case?

I had been contemplating putting a pi inside my tower before but never got beyond the "it would be cool" idea. Now I'm thinking of how to embed a monitor on the side to plug into the pi. I guess you could add sensors to the pi to keep track of stuff inside, but i like the idea of a virtual fish tank, or screensaver, or maybe a standalone music or video player that won't lag the PC while I'm doing other stuff.