The stackable Raspberry Pi case purchased allows stacking Raspberry Pi B+ and Raspberry Pi 2/3 but I was planning to modify this to stack older Pi’s.
Stacking the Raspberry Pi (256 MB)
The original Raspberry Pi does not have any mounting points. This makes it quite hard to stack using my chosen stacking solution. Therefore for the time being I have chosen not to stack this Raspberry Pi.
Stacking the Raspberry Pi (512 MB)
Revision 1.2 of the Raspberry Pi increased the amount of memory to 512 MB and added mounting holes among other changes. These two holes (highlighted above) allow easy mounting of the Pi to a surface. However the product I purchased isn’t designed for these mounting holes.
To mount them to my product I drilled new mounting holes in the acrylic. I used a hole mount guide produced by Raspberry Pi Spy. After printing out the guide I overlaid this on the case and drilled through the mounting guides.
Stacking the Raspberry PI B+, 2, and 3
The later Raspberry Pi’s added two additional mounting holes and moved the original two. This made the mounting points more uniform. Since my case has been designed for these mounting holes I didn’t need to add any more.
Final 6 Cluster Stack
Here is an image of the final 6 cluster stack I will be using to start testing the cluster.
This 6 cluster tower is formed of one Raspberry Pi 1 B+ and five Raspberry Pi 1 (512MB version).
By stacking them this allows easier cable management for the power and ethernet cables. It also allows me to reduce their ground footprint to be able to more easily store them.
Next post I will share some images of the cluster with all its cables attached.