Hello, nice video, well made. I also assembled the b 25 from 3dlabs but being the first 3d printed plane, i did not think to make sure the bowden tube for the elevators were clear for the 1.2 rods to slide easily in. I hope you had better luck.
Generally no, but 3D printing a B25 requires starting with simple prints and developing a knowledge base. It is an advanced project and your build quality will determine it's airwortiness.
