I just got done doing all the Hinges on my Sweet Stick.. here's how it went.

I took most of this from the Robart hinge Howto on Airfield Models.

Don't bevel the surfaces before drilling the hinges.. Do it after the holes are drilled.

Pic 1.. Figure out where you want the hinges on the plans..

Pic 2 Since the Stick has a 1/4" stab I got a 1/4" square hardwood stick to use as a drill guide..
Mark the hinge lines on the stick and down the center.. Then drill through the marks on the drill press.
If you don't have a drill press just be extra careful to get it through the same spot on both sides..
I'm using 1/8" hinge points so it's an 1/8" hole. When it's done I tape it on to the rudder with some blue masking tape..
I tried clamps.. this is better. mark one side as pointing to the stab.. the other to the rudder in this case.. You don't want to get it turned around later.

Pic 3 Setup the drill but to go the full depth of the hinge plus the 1/4" for the drill guide. Drill each hole on one side..

Pic 4 There ya go.. perfectly aligned holes..

Pic 5 remove the drill guide flip it to the Stabilizer.. remember to keep the opposite side facing out.
Drill the holes..

Pic 6 shows the hinges in the rudder.. Notice how I've cut pockets for each hinge so when it's bent 90 deg it 's flush with the edge of the rudder.
Robart hinges are also a little fat on the ends so I widened the holes top and bottom with a small round file till the hinge fit.


Pic 7.. hinges in.. It's aligned nicely.. Time to cut the bevels for the hinge line.

Pic 8.. Done!