this is my mini server rack, there are multiple versions, i have designed it to be parametric, if you need some more depth or want a 19" version, i can make it, just leave a comment with the size you want, if you experience any failiures of a printed part, please also leave a comment detailing: 
-the part that broke 

-the point it broke

-the infill you printed it at

-the material you printed it in

-what you did that caused it to break

also maybe include a picture of the break and i will do my best to resolve the issue.