iPhone 4 Tripod Quick Release

Looking for a quick solution to mount my iPhone 4 on my tripod I decided to make a quick release plate. My tripod came with a quick release plate so I took out my digital callipers and made several measurements. A few minutes later in Blender I had come up with the initial design. It is designed to hold the phone in place by friction, it doesn't need to be that sturdy as I don't intend moving the tripod with the phone in place that much.

It printed very well in translucent blue PLA 4043D but