I'm installing a servo driven 180 degree bellcrank in the cabin of my 80 inch Mini Max for pull pull on the rudder. Cables will travel about 20 inches before they exit the rear of the fuselage balsa turtle deck. Leaving the bellcrank they'll travel upwards and exit. How do you locate the two exit holes in the rear of the fuselage?
There must be a trick to doing this without butchering the fuselage trying to get the cables to run free to the rudder horn without touching anything? No line of sight or it would be easier.