This is a cradle design for 3/4" PVC for filament spools. This has only been used for Solidoodle, Octave, and SainSmart spools and the likes. At current design, this WILL NOT work for spools such as Taulman since you would need 1/2" PVC (max) to properly work.

Print upside down at higher infill (I used 70%)
http://www.thingiverse.com/thing:253290 was used for bases. 3/4" PVC rises to whatever the desired height. Use said 3/4" PVC to hold your spool and simply drop into the cradle.