Prusa i3 Box Frame Spool Holder

This is a spool holder designed to work with a 1 1/8" wood dowel which I happened to have on hand, but would work with anything that is around 1" in diameter. PVC pipe comes to mind as a another option.

It mounts on top of the standard sized box frame. You would need to print two of the spool stand. The length of the rod can be adjusted to accommodate as many spools as you can fit on the top.

The end caps are designed to fit the 1 1/18" dowel, but could be easily resized to fit different sizes.

It is similar to this spool holder: http://www.thingiverse.com/thing:390393 but a bit taller to accommodate larger spools and designed for the dowel instead of a printable bar.