HI AD! If you got thin ca in the hinge/pin area try the acetone tip . In the future, if you pre lube the hinge pin area you can even get away with pushing medium CA into the hinge slots. I don't bother with epoxy, poly [GORILLA] glue works. It pays to roughen the plastic on the hinge tabs. After the hinges are installed I cross drill and pin the hinges in with a round toothpick. I have a small pair of dikes that I ground to a single bevel cutting edge, and it cuts the excess toothpick off perfectly flush.