I do not have a blade balancer. But I do have a scale good to .001 pounds or .5 grams. Is this good enough? Thanks

Depending on the size of blades that you are balancing.

Rafael

That is what I do...I weigh them to see if they are the same and then check the center balance point by putting them on a piece of round rod, mark the center and check the mark and tape accordingly. If you buy a nice set of carbon fiber blades you will most likely not have an issue. I have never bought a set of carbon blades that were out of balance...but check them it is always possible

1050MM ROTOR DIAMETER tHANKS!

I use that same procedure for balancing my blades, except that I am fortunate enough to have found a 0.01 gram scale.

So I'm assuming that blade size is about 500mm long? As a pointer, when somebody asks you about blade size, they are referring to blade length, not rotor diameter.

And yes, a 1/2 gram scale should be accurate enough to balance 500mm blades, my question was trying to find out if you were trying to balance blades for a TRex 250 or something similar.

Rafael

It's very simple to make one with stuff you have around your house (long bolt, 2 nuts and 2 glasses).

It is importaint to find the centre of gravity on each individual blade first and make sure that it is in the same place on both blades, then if a blade needs weight added, add it on the C.G point. If the C.G is different you will have to add the weight to correct this problem first, and then add balance weight to the C.G.

The main thing is, the blades weigh the same, and the C.G is at the same point on the set of blades.

Where is the best part to set the CG? Center? Between the blade grip and center? Thats for the help so far guys!

I've never worried about the "ideal" CG point for the blades, just getting them to balance like Charlie shows, and having the CG of both in the same spot. I currently fly a Helimax MX400 and all I had to do to get them perfectly balanced was to add a drop of superglue at the tip of one of them. When cured, it brought the CG and weight to a perfect balance.
What it is called when you balance for CG and weight is dynamic balancing. When you just balance for weight, it's a static balance, which can cause some vibrations in the head, which will make the heli not fly as well.

The C.G will usually be closer to the tip of the blade because of the tip weights, but that varies depending on manufacture, don't worry about it too much, just make sure all blades are the same. Its also a good idea to balance tail blades as well most people overlook them