This is a case design for HackRF One following the Dangerous Prototypes Sick of
Beige style:

http://dangerousprototypes.com/docs/Sick_of_Beige_compatible_cases

The dxf file can be opened by QCad or LibreCAD.

HackRF_One_Case_With_Button_CutOuts.dxf  is a version which have edge cut-outs for the buttons so that 5mm or 6mm standoffs could be used.

Have fun.

scateu@gmail.com