Balancing during the assembly

[peterbb]

I used DesTinY's balance check today, and it worked great! +1 to merging it into master.

Noob question: Is it better to have rotors that are equally matched (e.g., all at 80%) or should you shoot for the highest possible values (e.g., three at 80%, one at 90%)?

[DesTinY]

It is better to use all the propellers with the highest values. Because this propellers course not only less vibration but they have also better buoyancy (boost ).
BTW: Energy consumption and sound of the CF is also better

Tuning worth it!
Best regards,
DesTinY

[orcinus]

Say you had it set to strobe on max X. This would show you the heavy side of the prop in the X direction. You could identify that heavy side of the prop while strobing. Do this one prop at a time. Then shut it down and and sand the heavy sides a little.

All without removing any props.

Why the overcomplication? You can just mark one blade of each propeller with a white dot or stripe, spin it up and observe it under good light (and a neutral background). You'll clearly see the "trail" made by the white marking, and you can figure out whether it's the heavier or the lighter blade based on whether the trail appears to be floating at the top or the bottom of the rotor disc (when viewed from an oblique angle).

It's a commonly used trick for dynamic balancing of traditional heli blades.