H5606

I like to define a centerline along the hinge-line with a tool as shown in first pic - it will give the exact C/L regardless of thickness - within reason. Second pic shows some beveling tools that are commonly included in Goldberg kits. Third shows beveled edge using bevel sanding tool - it will give uniform bevel even on bowed stock. All tools can be fabricated using common materials. Plastic tool has a scribing point located midway between the two pegs. As Tom C. says below as well as mfg: one should position EZ/CA hinges in both flying surface and control surface before applying fresh, water thin CA - you can use a pin pushed through the center to keep the hinge from pushing too far into either side - then pull it out when CA has set.

Internet is full of bad advice and I don't condone the following behavior but I've cheated and folded the EZ/CA hinge in half both directions to create a crease to define hinge-line center and placed in one half, applied CA sparingly right at union to "tack" it in place - one side only​ - capillary action pulls the CA in - been concerned I contaminated other half before finishing the job but have never been able to pull parts apart at least with brands I've used so far...