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fixing broken ball on HBCP2 mixing arm
Had a crash last night trying to hover in too much wind. Broken blades, bent main shaft, broken ball on mixing arm. Blades were cheapies easily replaced, main shaft easily straightened with a pair of pliers after removing the head.
The broken mixing arm - this is how I do it.
Drill a 1.1mm hole through the mixing arm where the ball was attached and the same through the ball. A set of Microbox drills and a manual Archimedes drill are in my toolbox. Then a small self tapping screw 1.8mm or less is threaded into the hole in the mixing arm, the spare screws left over from a set of Hitec servos were the right size. Allow the screw to project from the ball side of the arm by the diameter of the ball. Now holding the ball in a suitable clamp thread the screw into the ball allowing the mixing arm to turn with the screw until it fits the ball. A drop of CA glue between the mixing arm and the ball before final tightening and the job is done. The projecting piece of screw is then cut with a Dremel tool and cutting disc.
Total cost of repairs including blades - less than £3. Who says that you can't fly on the cheap!
The broken mixing arm - this is how I do it.
Drill a 1.1mm hole through the mixing arm where the ball was attached and the same through the ball. A set of Microbox drills and a manual Archimedes drill are in my toolbox. Then a small self tapping screw 1.8mm or less is threaded into the hole in the mixing arm, the spare screws left over from a set of Hitec servos were the right size. Allow the screw to project from the ball side of the arm by the diameter of the ball. Now holding the ball in a suitable clamp thread the screw into the ball allowing the mixing arm to turn with the screw until it fits the ball. A drop of CA glue between the mixing arm and the ball before final tightening and the job is done. The projecting piece of screw is then cut with a Dremel tool and cutting disc.
Total cost of repairs including blades - less than £3. Who says that you can't fly on the cheap!
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