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Thursday, October 14, 2010

Pigasus! Build Part 7 Fin Filling


If you look at the fin pattern sheet post #2, you know these fins have a complicated shape.

With all the inside surface edges of the wings and razor back pieces, it'd be much easier to fill the balsa before gluing onto the main body tube.
I wasn't looking forward to filling the inside angles but it turned out being much easier than I thought.

Thinned Carpenter's Wood Filler was brushed on all surfaces. The inside edges were sanded first.
I simply folded a piece of 400 grit sandpaper, stuck the fold in the angle cut and sanded back and forth - DONE!

The picture shows the razorback balsa piece with the sandpaper tucked in a recess. The fold of the sandpaper would knock down the filler, two edges at once.

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