About this 3D model

A camera gimbal pan-tilt ball for experimental printing, as discussed at: http://www.diydrones.com/profiles/blogs/40mm-retractable-camera-turret?xg_source=activity&id=705844%3ABlogPost%3A805254&page=9#comments Wall thickness is 1.0mm Finished mass is estimated to be 4.2g if printed in ABS. Designed to fit a 30mm 30mm camera like this one: https://store.diydrones.com/Micro_Compact_Super_Vision_CCD_Camera_p/cam-0003-01.htm