This mount is designed for people that want to use the excellent Z1 Tiny 2 3-Axis gimbal from Zhiyun with their DJI Phantom 1 or 2.
The hole pattern suits Phantom 1 and Phantom 2 shells and leaves enough room on a Phantom 1 for the batt door to be opened.
PLEASE NOTE - Standard legs are NOT long enough. You will require either 15mm+ extensions or the DJI Wide & Tall legs. Links below:
http://www.buildyourowndrone.co.uk/dji-phantom-wide-and-tall-landing-gear.html
http://www.thingiverse.com/thing:181068 (not my design)
The design replaces the 2 GRP bars that come with the gimbal.
Model shown in the pics was my Ultimaker prototype which was a two piece design (purely because it made it easier to print). This design is a one piece design that is much stronger.