This is a 5.25" drive bay adapter to allow a 3.5" HDD to be fitted.
Most significantly, it is screwless. The parts clip together and the drive is fitted in the printed mountings. It is in parts so should print on most printers. It is easy to print and needs no supports
I am very much an enthusiastic amateur when it comes to designing. My designs tend to have two things in common
1) They serve a purpose. I like to design functional objects which have a real-world use. 3D printing for art is fine, but it's its real-world application which will take the technology forward
2) Wherever possible I design to be easy to print and try to eschew supports or complex printing; modifying the design where necessary and possible to achieve this.