Quad Restoration

A summer project which I completed is a high-powered water rocket. For this rocket, I used 6 water bottles adhered together tightly for the inner shell. This was reinforced with fibreglass for one model and a carbon fibre and epoxy weave for another. The outside of parachute bay was made from another bottle; however, the internal structure of both the parachute and electronics bay is are 3D printed module.

 

A servo controls the parachute door and is activated by an Arduino, which, using a G-force sensor, senses the changing G-forces at the apex. However, I also used a remote control switch for more repeatable results. The launch pad is made from wood, and the locking mechanism is removed upon takeoff by a long string to a safer distance. For consistent test flights, the chamber is pressurized to 130psi, which has resulted in several flights over 500ft measured by an altimeter. 

Water Powered Rocket

In this project, I rewired a fire-damaged quad while doing the maintenance it required. I learnt how to wire the various switches and relays along with the battery rectifier circuit, which wasn't working. I also rebuilt and tuned the carburetor and ran new throttle and brake cables. I also added several front and rear lights to add functionality. The quad is now used daily on a farm property.