I wanted to share my build with you guys.
It´s a 3D printed case which cleans the setup and gives a little bit more safety to the drives and nanopi m4 board.
find more information on my website www.scheisser.net
and the model files at thingiverse.com
while drives sleep it consumes around 7W and under heavy load max up to 20W
If you have questions feel free to ask... or check above links
PS: sorry for the tape it covers broken parts which happenend while cleaning the prototype cover from supports. (was a quick and dirty print to proof the concept but works)