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Hausler 450p Main Rotor Blade Spooling Problem


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golfsoccer9
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PostPosted: Thu Jul 04, 2013 6:41 am
PostPost subject: Hausler 450p Main Rotor Blade Spooling Problem
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Hello all, I've been having some problems with my helicopter lately. Whenever I power up the Heli, and then turn the throttle cut off, the main rotor blades take a while to gain speed and it almost seems like it doesn't reach its specific speed (in relation to the thrust levels on the transmitter). At first, I thought it might be a battery problem, but after charging my battery; the problem still remains. Any tips or suggestions will be greatly appreciated!
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Burgess
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PostPosted: Thu Jul 04, 2013 10:01 am
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Hello golfsoccer9

Which transmitter and ESC do you have?
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golfsoccer9
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PostPosted: Thu Jul 04, 2013 11:45 am
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Burgess wrote:
Hello golfsoccer9

Which transmitter and ESC do you have?


I have a ZD fly t6a 2.4 ghz transmitter and a Neodym BLDC ESC (NAO 3A)
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Burgess
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PostPosted: Thu Jul 04, 2013 7:18 pm
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OK, start with the simple and work your way to the complicated.

Things to inspect:
Check for excessive rolling resistance in the drive system. Main shaft, tail drive, tail rotor shaft, and synchromesh belt tension.

Motor:
Bearings
The motor-lead connectors, there might be dry solder joint, or loose fitting connector(s).

Transmitter throttle channel settings via the PC program.

ESC:
Has the volume of the beeps reduced, if so then the ESC may-well be on the way out. Nevertheless, check the ESC menu settings.


Burgess
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golfsoccer9
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PostPosted: Thu Jul 04, 2013 9:23 pm
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Burgess wrote:
OK, start with the simple and work your way to the complicated.

Things to inspect:
Check for excessive rolling resistance in the drive system. Main shaft, tail drive, tail rotor shaft, and synchromesh belt tension.

Motor:
Bearings
The motor-lead connectors, there might be dry solder joint, or loose fitting connector(s).

Transmitter throttle channel settings via the PC program.

ESC:
Has the volume of the beeps reduced, if so then the ESC may-well be on the way out. Nevertheless, check the ESC menu settings.


Burgess


The ESC seems to be fine, but I am seeing a little bit of wobble with the gears that spin the rotor blades (I'm not really sure if that is the drive system or not).
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Burgess
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PostPosted: Fri Jul 05, 2013 7:28 am
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OK, can you explain what you mean by ‘thrust levels on the transmitter'.
A photo would be helpful.
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golfsoccer9
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PostPosted: Sat Aug 10, 2013 5:36 am
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Burgess wrote:
OK, can you explain what you mean by ‘thrust levels on the transmitter'.
A photo would be helpful.


I'm sorry for such a slow response, but I seem to be running across another problem. I plan on uploading a video soon of the problems. I really don't know what is wrong now. I'll plug in the battery to the ESC, and then i'll power on the transmitter. Some of the servos seem to twitch rapidly and then the blades spool up to a high level. While this is all happening, my throttle cut is on, and the joystick that controls the thrust level is pushed down. Hopefully the video will make things a littler clearer.
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Burgess
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PostPosted: Sun Aug 11, 2013 2:42 am
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Hello golfsoccer9,

The correct sequence for initialising a 2.4ghz system is:
#1 Ensure throttle stick is in the lowest position,
#2 Turn on the transmitter first,
#3 Then connect the battery to the ESC, and don't move the helicopter, or any controls on the transmitter before the LED of the gyro is in steady state indicating full initialization of the gyro and head hold mode.
The tail servo may slowly move to one end of it's travel, however, none of the cyclic servos should twitch, if digital they may emit a slight buzzing sound.

When ending flying, disconnect the battery from the ESC first, and only then turn off the transmitter.


Burgess
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