The qInch Project : Spring Phone Grip v2

Main Project Page : http://www.thingiverse.com/thing:668017

So here's version 2 of the phone grip. More streamlined, less parts and using only 2 compression springs that will live inside the extended part. Just pop the springs in and use 2 bolts to keep them inside.

The homedepot link is one spring that I tested. It fits but it has alot of tension. The amazon set has a compression spring which has less tension but works much better. So the strength will vary based on how strong the spring