Today I finished the deburr and dimple process. Actually I did the bulk of it today; I had some of it started yesterday. This is by far the most tedious part of the build, but kind of relaxing if you don’t make yourself feel rushed.
I did have one issue I had to ask some help with. There a few areas on the rudder where 3 layers of material get riveted together. I was not sure if dimpling all three layers was the way to go or if I should use a combination of dimple an counter sink. The answer was triple dimples are best and make the strongest joint. If the middle layer were too thick to dimple then a counter sink in that layer would have been the answer, but all the layer can be dimpled.
Apart and ready to dimple and deburr
Rudder horn barce skin and rib is an area where triple dimple will be required.
