60Beat Controller iPhone mount.

thingiverse

This custom bracket attaches an iPhone 4 to a 60Beat Controller for AR.Drone control. The iPhone can still be in a case due to its design. Centering the display during flight in FPV mode is possible because of the off-center placement of the iPhone. However, the unit currently leans towards the top, which may prompt the addition of handle extensions or counterweights in future versions. You might redesign the iPhone shell to fit your cased phone better or use a custom spacer with the provided shell. Assemble by threading the top part of the back of the 60Beat's center three holes as shown in the photo using a 5mm tap. Attach the connecting bracket to the back plate for best adhesion, following the photos for orientation before gluing. Glue the iPhone shell onto the connecting bracket with the earphone jack cutout at the upper right corner. Mount the assembled unit on the controller's back using three M5 x 7mm button head screws, ensuring not to thread them too deep due to the irregular controller surface.