Diodo Paul: too bad... no trial befor balancing to hear difference noise!
Elba Drone Video Production: Many thanks friend!!
Dynex Hobby: Hmmm, static balancing like this may not always work. You definietly need to dynamically balance the motor bell. There can be other issues to consider such as coupled unbalanced where an unbalance at one end creates vibration on the opposite end.
LuRoyale: where can we buy the threaded tube to attach to the motors?
Zbip57: It's possible. Check your props are balanced. That makes the biggest difference. Then check the motors for balance. I only discovered much later that one of the three blades of the stock camera mount had cracked right through. I still had noticeable jello whenever giving full power. It's gone completely now that I have the Zenmuse H3-2D gimbal with its rubber isolation mounts.
nzhuntahr: Would the motor shaft bend from a 50ft fall.Seem to have jello now after power failure.Landed hard ,took off without checking nuts,nut came off landed hard again.Check out my after failure vid.Accidently deleted actual failure :-(
Zbip57: Uh, ya. Those would be the "fancy new motors" I referred to in my previous post. I posted this video more than five months ago back in April, when Phantoms had only RH threaded prop shafts. You'll have to figure out your own method for balancing the new LH threaded motors, and for balancing the new-style props with the nuts embedded in them.
Mitchell Peterson: The new phantoms come w lh and rh threaded motors.
Zbip57: You guys with the fancy new motors will have to figure that one out for yourselves. My original Phantom has all RH threaded motors. I don't understand the need for LH threads. My stock DJI props are keyed and can't turn on the shaft. Simply snug down the prop nuts and nothing moves. The newest version has the prop nuts embedded in the propeller. How are you supposed to balance those props Einstein?
Mitchell Peterson: What about the other two motors that use a LH thread Einstein??
Pat B: Thanks for the reply, every thing that can be done to help balance is good thing. The aluminium tape idea is cool.
Zbip57: Well spotted. The centre shaft is slightly bent on this motor so the whole bell housing is off centre. I don't know if it was like that right out of the box, or if I bent it when I hit the flagpole in 'My First Phantom Crash'. But that's certainly what is causing the imbalance on that motor. One of the other four was perfect. One needed only a tiny piece of aluminum tape to balance it. This one though needed two fairly large pieces of tape to get it to balance. It made a huge difference.
Zbip57: If I can figure out how to put it back together :) I can still use the $15 tool as a centre punch, whereas if I bought just the $5 piece I'd only use it once to balance the motors.
Pat B: Interesting but the motor is out of round or not centered. Look at the "top" as it's spun, and the shaft end on the balancer. It's wobbling and that's not due to balance.
Al Me: Okay, that makes perfect sense. Thank you!
Zbip57: Any tips are welcome. Which piece under $5 would you suggest from the hardware store?
Zbip57: If it is out of balance it will always stop turning with the same heavy side at the bottom. Once balanced it will stop equally in any position.
Mark Crandall: But I do like the idea and balanced is always better. Nice work. Why buy a $15 dollar tool for the threaded piece? Why not go to the hardware story and by just the piece for under $5? Isn't the motor shaft a 1/4-20 thread? I'm too frugal I suppose.
vemotorsports: And thanks for a well put together video! Worked perfect on mine. Thanks again
Al Me: Great video. I'm confused about one thing: After you balance them, you twirl them and say "Perfect" based on how they stop, I presume. What exactly is it you're looking for to know the motor is balanced? What shows it is balanced?