Spherical drone
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Hi, here is the final year project I realized during my engineering school at Polytech' Tours. This drone is designed to answer the problems drones encounter with collisions (ie. crash, bam and boom!), and to be able to roll on the floor/wall/roof.

How it works (mechanics):

The sphere's shape is a truncated icosahedron, just the same shape as a football ball (well, soccer ball for our american friends ^^). It is mounted on two hoop, oriented 90° each, making the whole thing a gimball. This gimball allows the sphere to rotate almost freely around the drone chassis.
The two hoops are composed of :

1. Jonction_petit_bouclier (or grand)
2. Quart_pertit_bouclier (or grand)
   while only the joints on the sphere are printed. The rest of the sphere is made of 3mm carbon fiber rod (approximately 6 meters total), available at decathlon in the kite aisle.
   ###You'll need :

• 50 x Croisillons_Y3_Bouclier
• 10 x Croisillions_Y4_Bouclier
• 2 x Croisillions_étoile5_Bouclier
  ###About Carbon rods, you'll need to cut :
• 10 x 55mm rods to link the Croisillions_étoile5_Bouclier to the Croisillions_Y4_Bouclier on top and bottom of the sphere.
• 90 x 66.5mm carbon rods to connect Croisillons_Y3_Bouclier to each others.
  ###Chassis and hoops
  For the structure inside the shield (Plaque_Centrale with Connecteurs, support_moteur and the two hoops) you'll need 46 M3x12 screws (maybe some longer ones will be needed).
  ####You'll want to print :
• 1 x Plaque_Centrale
• 1 x Support_Moteur
• 2 x Plaque_Centrale_Connecteur
• 4 x Quart_pertit_bouclier
• 4 x Jonction_Quart_pertit_bouclier
• 4 x Quart_Grand_bouclier
• 4 x Jonction_Quart_Grand_bouclier
• 2 x Palette_Guignole (either plein or fly_wing like)
  Software implementation

The project used a MultiWii AIOP as flight controller, but the MultiWii implementation of the "DualCopter" is not behaving correctly, so I lacked some time to complete the project. I can provide the MultiWii project, where everything was configured, but not functional (the only tricky thing was to change the orientation of the plane in order to fit the mounting orientation).
Page is still under construction, please be patient :)