Making Rocket Body (3): Printing out rocket wings

While printing out the wings for Mk.1, I realized that their size relative to the PVC pipe body is too small. Still, I decided to fully print out to check whether its inner diameter smoothly matches with the outer diameter of the pipe, since if not, the inner diameter of the wings should be increased. (Design procedure: https://sites.google.com/pupils.nlcsjeju.kr/moojokim-3d-cad-modeling/23-rocket-parts)