Lee
Well-Known Member
Today after seeing it sitting in the cupboard for so long, a decide to finish it. Soldered a battery connector on and set up the KK 2.0 board. So easy to do with the LCD screen.
Its blowing outside, so tried a little hover indoors. Something was not right. I couldn't get it off the ground?? It wanted to flip to the left and yaw hard CCW?? Very strange. Then i found out why. One of the motor shafts had come loose from the bell due to a stripped grub screw, so the motor was only spinning from friction.
Heres how i fixed the problem.
Drill a new hole in the opposite side of the bell housing, first with a pilot drill then the correct size just smaller than the grub screw thread.
If you have a tap and die set, re thread the new hole. I didn't have one, so took a screw of the same size as the grub, filed two flat sides to it to allow filings to clear the hole.
And the finished job, good as new.
So now its ready to fly on Sat when the wind and rain stop
Its blowing outside, so tried a little hover indoors. Something was not right. I couldn't get it off the ground?? It wanted to flip to the left and yaw hard CCW?? Very strange. Then i found out why. One of the motor shafts had come loose from the bell due to a stripped grub screw, so the motor was only spinning from friction.
Heres how i fixed the problem.
Drill a new hole in the opposite side of the bell housing, first with a pilot drill then the correct size just smaller than the grub screw thread.
If you have a tap and die set, re thread the new hole. I didn't have one, so took a screw of the same size as the grub, filed two flat sides to it to allow filings to clear the hole.
And the finished job, good as new.
So now its ready to fly on Sat when the wind and rain stop
