Please go to Picopter.org for full printing and building instructions.

Raspberry Pi based drone, with full gimbal, remote controller and VR-glasses!

Otherwise, it's quite a simple but looong print.
Arms with or without support, print flat. Min 5% infill
Legs upside down, without support. Min 1% infill
Hull rightsize up, with support. Min 1% infill
Chassis upside down, with support. Min 10% infill
Gimbal 1, 2 & 3, however your printer prefers, with support. Min infill 15%