This shot from the movie, to me, proves they were square.
View attachment 694929
Exactly how I see it...All interesting info. Either way, as long as they weren't round, I'm satisfied.
Three sides, four sides. I reckon the point is you can't get that effect with a round blade.
Hi kurtyboy
any particular motor you used ?
where did you find a tapered square dowel ?
Seems like that would be pretty darn weak.What about an xbox 360 controller rumble motor?
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I'm not exactly sure how much power it would take but I know that 360 motor is cheap and small enough. And with enough power it's pretty strong. Not necessarily the solution, but it is something to consider. https://youtu.be/KYDWNO4xQacSeems like that would be pretty darn weak.
I used a square tapering wooden rod and an RC motor.
It could do with a bit more torque as swinging too fast causes it to slow down.