Adapters for balancing self-tightening 6mm DJI Phantom type blades V2

ADDED GROUPS OF 4: 4 OF EACH AND 2 OF EACH FOR EASIER PRINTING
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This is an updated design for the DJI Phantom 6mm self locking blades. Old version: http://www.thingiverse.com/thing:516376

This one is a little larger and has a larger base to prevent separation from the bed during printing. The flange that makes it more stable for printing also is easier to hold and screw into the prop.

I printed this with a .5mm nozzle, .100mm layers, ABS, fan at 75% after the fourth l