Helicopter rotor shroud

thingiverse

Having bought a small helicopter, I kept into colliding with walls, causing blade bending. Subsequently, I sat down, acquired OpenScad skills, designed the shroud. An update on 4/7/13 includes a version that reduces weight; however, it's yet to be printed. Give it a try and adjust .scad file parameters for accurate fit. Took me several attempts to get it right.