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bil
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PostPosted: Wed Nov 19, 2014 4:23 pm
PostPost subject: setup problem trex 450
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HI IHAVE A TREX 450 WITH A CT 6B TRANSMITTER AND I CHANGE THE DEFAULT SETTINGS. CAN YOU HELPME FIX IT?
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Burgess
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PostPosted: Wed Nov 19, 2014 9:27 pm
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Hello Bill and welcome to the forum.
Upper case founts are hard to read, so can you use lower case please.

Can you describe the nature of the problem.

Do you have the computer software program for setting-up your Flysky 6CH 2.4GHz FS-CT6B Transmitter?

Burgess
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bil
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PostPosted: Thu Nov 20, 2014 8:43 pm
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NO I DON
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Burgess
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PostPosted: Fri Nov 21, 2014 1:06 am
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Bill,
For numerous reasons, there really isn't any default settings for the type of transmitter you have, or any other transmitter.

So, if you don't have the computer program for changing the settings in the transmitter, did you turn one or both knobs on the front of the transmitter?

Is the helicopter not lifting off, or is it spinning round and round?


Burgess
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admiral
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PostPosted: Fri Nov 21, 2014 2:54 am
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Hi Bill,

Do you have a USB computer interface cable with your transmitter?

If yes this after market Shareware software should help you.

http://www.sgr.info/usbradio/download.htm

Also the Transmitter Manual

http://www.mycoolheli.com/files/T6Manual.pdf

And a site with a heap of links which may help.

http://www.mycoolheli.com/t6config.html

back to you Burgess, just thought these may help.
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Burgess
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PostPosted: Fri Nov 21, 2014 9:28 am
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Thanks Keith, some useful links there....From what Bill has written, I think it might be just a case of re-tuning VR (B) gyro gain, and or VR (A) pitch adjustment.

Bill...buddy just tell-us what happened with your helicopter.


Burgess
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bil
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PostPosted: Fri Nov 21, 2014 2:58 pm
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yes i got the program bat the helicopter is spinning round and round
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Burgess
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PostPosted: Sat Nov 22, 2014 4:57 am
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Spinning round and round usually has more to do with gyro than transmitter settings. Can you tell us the make and model of your gyro?

Have you made any other changes other than setting in the transmitter?

Which setting in the transmitter have been changed?

Burgess
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bil
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PostPosted: Sat Nov 22, 2014 3:12 pm
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Hi the gyro is ZD720 and i wont all the default settings. THANKS
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Burgess
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PostPosted: Sat Nov 22, 2014 11:29 pm
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Ok...you'll need go through a complete setting up procedure.

The most important aspect of setting up any helicopter is levelling the swashplate. The swashplate must maintain perpendicularity to the main shaft throughout its full movement up and down.
The swashplate must be level at the zero degrees collective pitch (mid-stick) position in Idle-Up flight mode and all three servo arms must be perpendicular to the main shaft. To achieve this you will need a swashplate levelling tool, and need to adjust the SubTrims for channel 1, 2, & 6.
Then you will need to level the swashplate at the top of its stroke (top-stick) position, to achieve this you will need to adjust the top End Points for channel 1, 2, & 6.
Then you will need to level the swashplate at the bottom of its stroke (bottom-stick) position, to achieve this you will need to adjust the bottom End Points for channel 1, 2, & 6.
There are no default settings for these adjustments.

In the full up-stick position, the top of the levelling tool needs to be level with the bottom of the drilling art the top end of the shaft.


Safety Note: Prior to working on setting-up the helicopter, to prevent accidental spool-up disconnect all three ESC leads from the motor.

For best results you will need a pitch gauge and a swashplate levelling tool.

For info on setting-up a the ZD720 gyro see from page 5 in this pdf manual, to stop the helicopter from spinning round and round, change the position of the little toggle switch marked REV and NOR.
http://parkrcmodels.com/instruction/HAU450V2RTF1_version1s.pdf

More setting-up info in this manual:-
http://fast-lad.co.uk/store/images2/content/Align_T-REX_450SEV2_Heli.pdf
Refer to page 7 for basic link-rod lengths;
Page 17 shows how the head should look with the collective stick at mid-stick zero degrees position in Idle Up.
Page 20 for cyclic pitch and throttle settings.


Beginners Guide to Configuring the T6 Program & Basic Helicopter Setup:
http://helihelp.rabbitsvc.com/

Here's a whole set of videos relating to building and setting up T-Rex450SEV2 clone with the Flysky 6CH 2.4GHz FS-CT6B Transmitter.
See the videos from #7 from about three quarters halfway through and video #8.
http://mikeysrc.com/Low-Cost-450-Heli.html

Remember to create a folder on your hard drive in which to save your setting files. As you make adjustments remember to save to the same file; when you've done all the settings and the helicopter is flying properly, give that file a relevant name like default. If you want to try different settings open that file, make the changes, then save under a different name.


Burgess
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tombo242
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PostPosted: Tue Nov 25, 2014 1:15 am
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Wonderful advice there Burgess. Cool

Tom.
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bil
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PostPosted: Thu Nov 27, 2014 5:18 pm
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i tray and i make difrend settings but the helicopter spinning round and round .idont now wat to do
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admiral
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PostPosted: Thu Nov 27, 2014 7:05 pm
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Hi Bill,

Burgess advise is very sound and should be able to get you up and running. But in this case it may need somebody with experience to actually be hands on to help you, do you have a Local Hobby Shop that could have a look at it for you? or even some video of what it is doing would help. The information your supplying is not helping a great deal.
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Burgess
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PostPosted: Thu Nov 27, 2014 8:35 pm
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bil wrote:
i tray and i make difrend settings but the helicopter spinning round and round .idont now wat to do



Ok, to stop the helicopter spinning round and round, try this...

Look at ZD720 gyro see page 5 in this pdf manual:
http://parkrcmodels.com/instruction/HAU450V2RTF1_version1s.pdf

In the centre of the gyro are two small slide switches:

Top switch DS (digital servo) keep to left OFF position

Lower switch DIR with REV NOR below. Change position of THIS switch.
It changes the direction of gyro response.

Top right pot ‘DELAY' set to 75% for now

Transmitter:
Lefthand switch...set to back
Lefthand knob VR (B) set to 2 O'clock right of centre (in head hold).

NOW try...has spinning stopped?

NEXT:
Does the helicopter respond to rudder stick
Move Rudder stick Left...does the NOSE go to LEFT?

If yes...adjust DELAY pot in small amounts to wards 0% when tail wags then just back-off so the tail hold steady.



Burgess
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bil
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PostPosted: Tue Dec 02, 2014 4:16 pm
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I tried everything that you told me, but the helicopter is spinning round and round witc channels are on the tail ? THANGS
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