I would like to share with you my "amatorski" way of installing Euro hinges (the correct name is - Concealed hinges).
There are many types and shapes but, I deal only with the 3 basic types (keep it simple)
I don't use "Face frame" so, I don't have any knowledge about them.
As you'll see, I'm not using any jigs just make the 35mm holes where ever I want and than, fit the door to the cabinet wall.
The normal hinge position is some 100mm (4") from the door top and bottom edges but you can deviate...
The distance of the 35mm hole should be 3~6mm (1/8"~1/4") from the door edge...I selected 4mm (5/32").
[Continued in Part II...]