Flexible Phone Holder

Release Notes:
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## 2014/10/09 ##
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* Upload a new base file which is suitable for a new joint.
* Modified ball-joint size.
* Upload new pictures

## 2014/10/08 ##
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* Upload a new clamp file which has a better size to fit in.
* Upload a new joint and a platform file.

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Flexible phone holder is rotatable for 360 degrees. You can rotate your phone from vertical to horizontal. Even though you are charging your phone or watching a video, you're still able to use it with any angle you want. It is also able to hold multiple sizes of mobile phones except tablets.
1. 360 degree rotation
2. Set vertically or horizontally
3. Flexible hold for different phone size.
Work in progress & TODO:
1. Change design to get rid of a lack of friction.
2. Decrease the need of printed filament.
3. Used in car.