Collapsable Filament Reel holder for Wanhao i3 Z Extension

The Collapsable Filament Reel Holder by PushPlastic (http://www.thingiverse.com/thing:1647784) doesn't play nice with the existing spool holder for the Wanhao i3 and its variants.

I remixed AzzA's Z Extension brackets to include a spool holder for these PushPlastic spools. I just had their 200g sample spools and this spool holder worked great, I don't know how well it would work with a full 1kg spool.

There's a stopper on one side, and I'm just using a ziptie on the outside to prevent the