Chris and Dan worked through the instructions to calibrate Dan's home-built quadcopter ( Ardupilot Mega 2.5 controller ). We tried it on the tables, but it fell off the side. So we took it into the bigger room. After hovering for a few seconds, Dan got into vertical oscillations and then cut the power from about 2 metres up! He'll have to make some more parts for it on his 3D printer.
