Balance your Blades using weights such as lead, or bolts. move the weights around while your blades are suspended from the wire. adding enough weight to make the suspended blade set level. this needs to be done in a place with no air movement. The Nuts are held in place using wood screws.
Hear is what I used to center the wire in the center hole of the blade hub. It is a ballpoint pen tip. with the wire passed through it. and a small screw to make a stop.
Another method is to drill a hole in the tip of the blade and melt lead solder using a soldering iron. After some testing using the lead in the tip method, I have found that this method has its problems . I would recommend balancing the blades as close to the hub as possible. your blades will have a much better dynamic balance.
