Stand-alone enclosure for OpenJBOD controller and Adaptec AEC-82885T SAS expander

Customized to hold an OpenJBOD controller board (https://forums.servethehome.com/index.php?threads/custom-jbod-motherboard.45684) and an Adaptec AEC-82885T SAS expander, with the SAS expander mounted horizontally using a PCIe reverse right-angle riser. I have this unit connected to several bare 2U 12LFF drive cages (three surplus HP DL380 G8 cages, two of the Inspur units that are widely available on AliExpress). Due to an oversight, version 1 has the fan for the expander placed externally; the placement of the screw holes versus the rear support for the expander card make it a tight fit to get one of the screws attached. The 40mm fans I used came with long screws that go all the way through the fan; I had to actually cut one of them about 5 mm shorter so it would fit behind the post. I will probably post an updated version that's a bit deeper so the fan can be mounted internally instead. Note: the Adaptec expander is spec'd to require 200 LFM of airflow. Make sure to choose a fan that has sufficient airflow to keep the controller cool. (I'm not sure if the placement of the fan is best to maximize the airflow over the heatsink; time will tell.) This is designed to work with a 32mm “tall” reverse right-angle PCIe riser; I happened to have an x4 version on hand, but any size will work, as the OpenJBOD board has an open-ended x1 slot and will accept anything. The expander is supported on its mounting holes, so you can probably also use a flexible riser of some kind, as long as it can fit between the expander and the wall. The reverse right-angle risers are also available in a 20mm height; I used the 32mm so there's more clearance I found it easiest to connect the fan cables to the controller first, then install the riser and the expander (with PCI bracket removed) to the controller, then carefully slide the whole assembly into the enclosure. Since server racks tend to get pretty warm, I printed this in PETG. This was customized in OpenSCAD. I will post the .scad file after I have a chance to clean up the code. Parts: OpenJBOD controller: https://github.com/OpenJBOD , https://www.reddit.com/r/homelab/comments/1fv60rb/i_made_an_open_source_jbod_motherboard/, https://forums.servethehome.com/index.php?threads/custom-jbod-motherboard.45684 Adaptec Expander: e.g., https://www.ebay.com/sch/i.html?_nkw=%28aec-82885t%2C00lf095%29 PCIe Reverse Riser: e.g., https://www.amazon.com/dp/B0D2KRXKWG/ 40mm fan: e.g., https://www.amazon.com/dp/B07VXT95GN 4mm M3 (CD-ROM) screws Not shown: ATX (or comparable) PSU