@pepson there are a case ready to download and print
go to design files and take the stl files..
rgbwCaseTopV2.stl
rgbwCaseBottomV2.stl

@aramko at first, he shared a link with the preloaded board on dirtypcbs (http://dirtypcbs.com/store/designer/details/7078/867/mysensors-rgbw-controller-v1-3).
If you want to upload the files by yourself, you have to zip all the files and upload them.. take a look here under "ordering" (https://dirtypcbs.com/store/pcbs/about)

@Nca78 Do you tested this board, if yes, did it work? And which CS capacitors did you use?