About this 3D model

This is the structure for a panorama robot using a GoPro Hero camera. Uses two R/C servo motors. The tilt servo (the top one) can be a regular cheap servo. For the bottom pan servo you need one that can rotate 360 degrees (for regular servos the range is limited to about 180 degrees). These are a little difficult to get by, I used this one: http://www.pololu.com/catalog/product/522