My girlfriend loves baking and chocolate and I love building and flying quadcopters. That probably makes us the perfect couple fulfilling all gender specific clichés ;-) Anyway, she came up with the idea to build a chocolate copter. I was skeptical at first. Chocolate is not as stable as aluminum or carbon - which are typically used for copter frames. Nor is it heat-resistant. As we all know from chocolate consumption, it already starts melting at body temperature. The battery, ESCs and motors, however, get rather hot while flying. So chocolate and copters definitely don't sound like the best combination, but you never know until you try!
First we made a silicone mold from a wooden prototype. The motors and the flight controller were mounted on extended steel spacers. ESCs and the battery were taped to Styrofoam spacers. This prevents the chocolate from direct contact with the hot components and helps increase the life expectancy of the copter.
The spacers of the motors were placed in position before the mold was filled with delicious, molten chocolate - this was probably the easiest way to attach the motors to the frame. After spending some hours in the fridge the frame was set and ready for the maiden flight. Needless to say the landing gear was made out of chocolate as well.
And it worked! It flew as stable and smooth as any other copter. So we have found a new way of building copters, without the need for drilling, milling or cutting! And best of all, when you get hungry during the flight sessions you always have something to nibble with you ;-)