Doepfer

Does anyone know where I could obtain a very precise, technical, and 
to scale drawing of the Drehbanks faceplate so I could print labels?  
I want to be able to easily print labels so I just have to cut and 
punch holes for the knobs.

Fixing individual labels under each knob is innefficient and useless 
when I want to use the Drehbanks knob plane for more than two 
applications (A / B).

Possible that this exists as an Adobe PDF or with some technical 
drawing application?