While watching SpaceX Demo-2 Mission Launch live I’m writing this post about the shims I made to fix the 2.5 mm gap near the wing tip.
I didn’t like the bulging of the wing skin near rib 11. I tried lowering the tabs of rib 11 which was not a success and I had to order new parts.
After consulting TAF I came with a solution to make a shim to blend-in the skin to the higher rib.
First I designed the shim in Onshape:
Due to Covid-19 receiving parts from Aircraft Spruce takes ages so I sourced locally 6060 Aluminum.
With a oscillating band sander (grid #40) it took some time and quite some heat to create the shims:
Ready:
The shim goes under the skin at this location:
Looks much better:
