My server rack was homemade out of wood from B&Q, my partner helped me put it together as he had the tools to do such a job.
It consisted of the bottom half would house the servers, switches & UPS. The top half would have my two 3D printers on top, which also would mean the servers would allow me to remotely control & monitor the 3D printers. I also put a blue LED cloud on the top of the rack because why not, it is essentially my personal cloud.
From this rack, I could run every service on my network, from the IoT lighting to the CCTV DVR system.
I also with the help of my partner was able to install an old TV backlight at the top of the rack to act as a high-end defused bright light that would make working on the 3D printers more practical as the lighting in the sitting room of my house was not very good.
DELL:220 (It is the main router in the network)
HP:DL360E (Hosted Services)
DELL:710 (Dedicated hosted machine for one client)
DELL:710 (CCTV, Mass Storage, Hosted Services)
DELL:720 (Active Directory)