designed a case for 3D printing. It has support for two sata drives, one at the bottom cover and another from the top. The height is about 50mm. Proper length of screws are needed for mounting the case together.
Here is the link to copy and download stl files https://cad.onshape.com/documents/2909920485191d3fd60601ed/w/e2b81df92fc1ada9d1cdb9b0/e/30bb49d9fba962322fcb79d6
good job. I like it~~
nice case, how can stl be downloaded?
You need to right click one of the tabs (at the bottom of the page) and select export
Nice job Felix! If you plan to make a batch, let me know 
Is it possible to change the case so that two 2.5 inch HDs fit in? With fixings and ventilation outlets? The case is otherwise perfect, unfortunately I’m not experienced enough in 3D zecihen to do it myself, but the purpose of R2 is the NAS function. Thank you very much
I also vote for that. My BPI R2 will be NAS + router +ap +domoticz host 
in the assemblies it looks like there can be 2 2.5inch hdds included
in assembly1 move PCB up/down so you can look below it, in assembly 2 you can drag the top off and see also a HDD
also you can make the “Edge”-part invisible/transparent to see the HDDs
Like already replied, the case can support two HDD (one at the bottom of the case and another one at the top). You can adjust/remove the ventilation, but you need to learn a bit 3D design. It’s not that hard to do it with onshape website.
Thank you, I’ll just have it printed.
Any problems with fitting (that should be changed)? I’m about to print it…waiting for a friend that has access to a 3d printer
Very nice! I bought an R1 case because I remembered reading somebody from BPI say that the R2 is the same dimensions as the R1.
After drilling some new holes and and sawing some new slots - they were correct 
Don’t have a 3D printer myself. Still waiting for the print from a friend of mine. Can’t gaurantee everything will be ok.
Nice, but I wonder how to export to stl-files? If I right click on tabs I miss export … Could you please upload the files somewhere else for download?
You have to login for export…
Banana pi BPI-R2 Premium Aluminum Enclosure，easy to DIY your product 
Wow! This is great! Looks amazing 
Good job
used 3d-model from @xjianz converted to 2d for laser-cutters and modified it on some points
here are my files:
https://drive.google.com/drive/folders/1ASMpTAfhj4VEuhv56XMioet9tvht-5SL?usp=sharing
material is birch plywood, all is 3mm except the front where is 2 parts 1mm & 2mm
Do you have more photos for the case? How is the bottom/top been laser cut?
on the gdrive are some photos of the parts…i look if i have more…What do you want to see exactly?
Bottom an top are simply cut in 3mm. Nothing special.
The small pieces are glued onto it. I have taped the holes with the parts cut out so that they are closed and can be opened if needed
added 3 more photos to gdrive, hope it’s more clear how it was assembled