"Universal" Filament Spool Holder

I found a pretty nice looking filament spool holder, but many people complained because the support required is very difficult to remove. This design should print with zero support, but requires assembly after printing. The amount of each piece needed to print is included in the part name, and assembly should be pretty self-explanatory. Please leave any feedback, good or bad!

This was printed by a150587 with the fixed pin design and it is confirmed to be working!

UPDATE
12/27/13 Made it simpler by implementing a "snap" pin, now two more regular washers are required but the number of unique pieces was reduced from 6 to 4.

1/2/14 Happy New Year! Included fixed pin design courtesy of a150587. Thanks! NOTE. The source file for the pin is for the old pin design, which does not work as is.

1/15/14 Modified wheel design, it should print much nicer now.