Simplified universal 2.5 > 3.5 hdd / sdd caddy

I just simplified the hexagonal bits as the comments got me a bit worried, done using tinkercad by importing the STL and editing, before I realised Dojan had very kindly shared the source !!!!

Still,it is all good practice.

This has now been tested and in use inside a couple of machines, thanks so much Dojan for your design, it really is all the placing of the holes that makes this so useful. I used it to mount a Crucial MX100 SSD into a bottom mounted dell system.