Helicopter

thingiverse

Dual rotor, rubber band powered helicopter. Instructions This is designed to print successfully on a Printrbot Simple with no overhangs or support material required. Print one each of all parts except for the rotor blade, which should be printed four times. The body consists of two pieces that snap together easily, while the rotors snap securely into place on the rotor hubs. Once assembled, the helicopter will fly immediately, but it is recommended to apply a small amount of glue, such as Testors plastic cement, to keep all parts in place firmly. To assemble the helicopter, a straightened paperclip (cut in half) and a thick rubber band are needed. Each wire piece should be bent into shape according to the provided picture, then wrapped around each rotor hub loosely with a small loop of the rubber band over each hook. The rotors will now freely rotate with ease. Apply a few drops of 3in1 oil for better results, ensuring that the rubber band is not too tight, which could hinder proper rotation. A full unit can reach approximately fifty revolutions, resulting in successful flight to a height of our second floor ceiling effortlessly. Remember that all pointed rotor edges point downwards, guiding the helicopter upwards during its descent. Upon final winding, place your index finger between the bottom hub and thumb on it gently, while grasping the top rotor by one of the blade tips securely with another hand. Release both pieces at different times – the bottom one first, then the upper part last – which should allow the aircraft to remain level in the air. Good luck in flying this delightful dual rotor helicopter safely!