Rail Extention for 3.5" Diskdrive mount

If you want to mount a 3.5" Diskdrive in a 5.25" Bay with rails you need a Adapter like this one

https://www.printables.com/model/374660-525-to-35-drive-bay-frame/

But the back part of the adapter is not supported and its hard to align the whole setup. This is the reason for this model. Print it twice, one must be mirrored in slicer.