60mm Hubsan X4 frame for 8,5mm motors

60mm Hubsan X4 frame for 8,5mm motors.

Mainboard is mounted with double sided foam adhesive tape, and the battery holds in place with a normal rubber band.

http://www.aliexpress.com/item/Hubsan-X4-H107C-Quadcopter-Spare-Parts-Motor-8x20mm/32581592462.html?spm=2114.01010208.3.83.KkKyla&ws_ab_test=searchweb201556_0,searchweb201602_4_10017_10005_10006_10034_10021_507_10022_10009_10020_10008_10018_10019,searchweb201603_1&btsid=32fa94c9-e01a-4689-92f2-64ee59ac6dc5

http://www.aliexpress.com/item/Hubsan-x4-H107C-H107D-H107L-Spare-Parts-Original-Main-Receiver-Board/32455087578.html?spm=2114.01010208.3.126.v3t00Z&ws_ab_test=searchweb201556_0,searchweb201602_4_10017_10005_10006_10034_10021_507_10022_10009_10020_10008_10018_10019,searchweb201603_1&btsid=0b4313cc-38f2-436b-aa64-126af369dfb9

Please feel free to suggest modifications and improvements for the design.