This is a re-upload from my Thingiverse page now that I'm locked out of it. Originally published January 25, 2016 to https://www.thingiverse.com/thing:1291997

Summary

Hey Guys! I've uploaded two variants on the same thing. The flat version is for printing on its side if your printer doesn't have 135mm of Z Axis, or you don't like tall prints. The other, balanced version is recommended if you print it, as it will be more stable.

Once you've got it all printed, just stick any rod through it, and put on some filament.

Print Settings

Printer brand:

RepRap

Printer:

Prusa i3

Rafts:

No

Supports:

Yes

Resolution:

Any, I used .3, as it doesn't need to be pretty

Infill:

Some, enough that it'll hold a spool