My new Twister wing build is finally gathering momentum, but I don't want to botch the fitment by cleaning the excess charcoal with sandpaper. What's the best way to clean off the charcoal without removing wood? Or what about areas I'm going to CA, can the charcoal be ignored there? I'll be using thin CA in some places and 5 second Locktite CA in others.
For the outside edges, I just stacked the ribs and sanded them clean with 320 paper on a soft block. But the spar notches are harder to clean without removing enough wood to loosen the spar fit. I don't want to have to shim them after I lay the spars in place.
Rusty