Biplane Mobile for Baby Room

I designed this mobile for my son when he was born, and it was hanging in his room until we moved about 5 years ago. The planes are assembled using the printed pins, and you will need 5 pins for each plane. The propeller and wheels should turn if clearances are correct. The armature is made from a wooden dowel, cut in half, and then braced together using two of the CrossBrace parts. 4 M3 bolts and nuts are needed to assemble the armature, and kite string is needed to suspend the clouds and planes.