Mechanical Pencil

I was looking for a mechanical pencil to sell as something that might be a little cheaper than a store bought version. I found this, http://www.thingiverse.com/thing:1577709, but I thought that some people might like the "cheap Chinese pencils" so I made this. But unfortunately, it's a failure, it doesn't work. I'll leave this up in case somebody can get it working, but until then, I'm calling this a lost cause. On the brighter side, I came up with this, http://www.thingiverse.com/thing:2225