This is my custom modular rack I made for my 10" Homelab. You can read more about it here: https://www.reddit.com/r/homelab/comments/1idbyfn/my_new_mini_rack/
For assembly, the rack uses standard button-head M6x12mm bolts and M6 Square Nuts. See the CAD picture for assembly configuration. This rack relies on the 10" rack components for holding the 2 sides together. To connect rack uprights to other parts, use the provided gusset plates.
Links to Hardware:
The rack is designed in a way that allows you to scale the rack to any size you need with modular rails of varying length. You can extend the rack as high as you want (might get unstable) by using the connecting gusset plates.
Inspiration for this project was from MRP's Reddit Post
The author remixed this model.
The DGS108 mount was modified to print in one piece, the Elitedesk mount was modified for 10" racks and a velcro strap for a portable SSD was added. The blanks were used to make single part mounts for every part.