WORK IN PROGRESS
The card rack system is a 3D printed module system for Eurocard style system construction.
I started designing it because a traditional card rack was expensive to buy, and I wanted to be able to customise the card count and widths of the bays and make them available for other hobbyists to use.
This system has 6 card slots, the leftmost one is 2″ bay, and the remaining 5 are 1″ bays.
Specifications:
- Accommodate a 100mm x 160mm card
- 1″ (or multiples of) spacing for each card carrying bay
- Threaded hole to take a M4 at the top and bottom of each 1″ bay front (multiply as needed for wider bays)
- stackable with registration guides (pegs and holes in this case)
1″ Bay module
The module is designed to have a set of card guide rails and an aperture for the DIN connector.
There is a cavity at the front to allow a M4 nut to be placed in. I secured mine by putting the screw in to keep it in place, then filling the hole with melted plastic from my 3D printer pen. Anything that sets should work as long as it allows you to remove the screw once set.
This is 2x 1″ bay modules stacked together, you can see the DIN connector through the backplane opening
2″ Bay Module
The 2″ bay has a single set of card guides, this bay is intended for wider cards or modules such as PSU, Drives, or (in my case) cards with tall ZIF sockets that won’t fit in the 1″ bays.
End caps
Left endcap with hole for USB C socket, switch, and power LED
Right endcap
This is the front view, I put some makeshift front panels on to test it out.
This is a rear view. The backplane apertures are spaced 1″ (25.4mm) apart. A bus/backplane board with DIN connectors at the same spacing will sit with the PCB flush to the plastic with the DIN connectors entering the apertures.
2″ bay and 1″ bays stacked together without endcaps in place.
You can find the STL files for the bays and endcaps here