Main frame for octocopter. New Version With 8x8mm motors, it can handle a sports cap (see video). note: 8mm_v1 have a worng size motor holes wait V2. Octocopter v1a: firt version with bad position of the arms. Octocopter v1b: fixed v1 version. Octocopter v2: new Version it's not working propertly. the main board i'ts in the badway, i will update that. And it have a holes for add original hubsan battery holder. 8x 7mm hubsan motors. 1x Main hubsan Motherboard all that you need is connect to each motor pad 2 same motors with same propelers. Video v1 http://youtu.be/Gz8qETTCyA8 Video V1 8mm version http://youtu.be/oaxj_nEeL7g Thanks to http://www.thingiverse.com/thing:232527 for the idea and the Model.