iPhone 4 tripod mount

Updated with 1mm ridges so the fit can be tight 4/3/11.
This is for mounting your iphone4 on a tripod. Charging is possible while being held by the tripod.You can also stand your iphone in different ways.
Mounting your iPhone to a tripod can make a big difference when trying to make a watchable movie.
A 1/4 inch Wood insert Nut found at Lowes is mounted in the plastic to give a secure attachment to the tripod.
Please make sure that it holds your iPhone tight before putting it at any dangerous angles or upside down.
The holder was drawn/rendered? in sketchup and imported to ac3d then exported to .stl .
I am very new to this so if something isn't the way it is expected please leave a message. My first print from the Rapman 3.1 was made on Feb 23. Thanks to all in the 3d printer community for all the help you have left in forums ect.