Fragmentation grenade

Hi,

Welcome to my probably terrible fan.
This fan is a bit different, and requires reading a few instructions:

1 - This fan requires no supports
2 - This fan requires you to print the parts in the orientations imaged below
3 - This fan MAY require small amounts of glue (but I hope not)
~~4 - This fan should only be operated by a bomb squad~~
~~5 - I have no idea what I'm doing~~

*Q: Why the split design?*
*A:* I want to see if printing the fan blades with airflow-aligned layer lines has a positive effect on airflow.

*Q: Help me I'm suffering from multiple lacerations!*
*A:* It'll be over soon!