Solder Spool Holder v2

This changes the end pieces from http://www.thingiverse.com/thing:515131 but the remaining pieces are identical.
With this version, the bearing is totally enclosed so it doesn't matter how you pick it up, it doesn't fall apart.

I made the pocket size for the bearing to be 22.1 mm and for me this made the bearings a pop in/don't come out fit. If you'd like something sightly larger, let me know and I'd be happy to create a larger version.

[jb035](http://www.thingiverse.com/jb035/about) made a narrower version [here](http://www.thingiverse.com/thing:1570016)