Adapters for balancing self-tightening 6mm DJI blades (OBSOLETE).

THIS DESIGN HAS BEEN UPDATED. SEE:
http://www.thingiverse.com/thing:737600

This file will print end adapters for 3mm rod for balancing self tightening 6mm CCW and CW blades as used on a DJI Phantom ande others.  I used polished 3mm tool steel rod I bought on Amazon, about 6" each.  The .stl file prints two sets CCW and CW.  The photo shows two more I also printed from the file "End_cap_adapter_for_Phantom_20_x_8mm.stl", by jjisnow. (DJI Phantom 2 Prop balancing adapter for Dubro).  I used ABS and mark the ends of the two CCW pieces with a black Sharpie.  My design more closely emulates the actual thread ends on DJI Phantom 2 motors, the relief and thread length.  I am a new guy to this and my prints still come out a bit rough and oversized, holes too tight, so I resorted to using dies to clean all the pieces up a bit and reaming our the hole for the 3mm rod.  If I figure out how the get it right without finish work, I will update.  In order to get the part as accurate as possible, I used .100mm layers and slow printing speeds.  I may have calibrating and other issues that I do not understand yet, but my prints come out a bit rough and need cleanup.  The brim is not part of the .stl file.  I added them when I print to help keep them upright while printing.  They come off easily.