Pencil Propeller Whirligig
A simple propeller to press-fit onto a pencil. Works good, if a little heavy.
I added wedges to the ends of the propeller blades to prevent warping in ABS, and so you can print it without raft or support.
Designed in Moi3d.
Sliced using ReplicatorG.
Printed on a Flashforge Creator Pro in ABS.