So I have this little (over 6' long) oak entertainment center I'm working on. In my my design, I thought it would be cool to use European hidden hinges (Blum) on it. There are 4 doors. Two doors near the outside edges with solid oak raised panels and the inner two doors are divided glass behind which will reside the equipment. The two outer doors will hide 3 drawers each and they use full extension ball bearing drawer slides. The two inner doors hide 2 each sliding shelves on the same full extension drawer slides.
The doors are done EXCEPT drilling for the European hidden hinges. When I bought the hinges, I bought a Teflon setup block for setting up the drill press and the jig for drilling the holes in the face frame. These are 120º Blum face frame clip hidden hinges. I fit and installed drawers in one outer section and decided to dry fit the European hinges. Thanks to good Karma, luck or whatever you want to call it....The hinges won't allow the drawers to come out! The doors fold back in on the hinge when opened. Thus the drawer slide strikes the door. Well Vern..it's not going to work with those hinges. I researched it at the site where I bought it and it didn't point that minor thing out. I researched the same Blum hinge at another site and it showed that it folds back into itself and the slides won't clear.
I had taken a scrap piece of oak lying in my cutoff box, drilled it, mounted the hinge then held it place on the face frame to discover this phenomena. So....I didn't drill the doors or the face frame..... If I had drilled the doors with that 35mm hole, I'd be crying right now.
Dry fitting should be a regular part of building and assembling if you are a rank amateur like me.