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MINI TITAN PROBLEM

Started by premvijay, June 14, 2009, 02:18:58 AM

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premvijay

Dear Mr. Anwar, Please find enclosed some images of the completed mini titan with all the connection settings as advised by you. I am still facing the same old problem of throttle as for the left right up and down movement the swash plate moves in the right direction but when I start giving the throttle the motor runs without the blades running and the swash moves in downward motion. Have tried to include video to make my problem clear to you.

premvijay


RotorZone

Quote from: premvijay on June 23, 2009, 02:47:22 AM
when I start giving the throttle the motor runs without the blades running and the swash moves in downward motion.

The swash direction is correct. It moves down for increasing pitch. If your motor and main gear is turning but blades are not, then the motor direction is reversed. Interchange two of the motor to ESC leads.

anwar

Yep, interchange any two of the three wires going from the ESC to the motor.

Also, make sure your servo arms are connected to the servos in such a way that the swash plate is not hitting either the top or the bottom of its range of motion.
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premvijay

thank u both. will implement and let u know. regards how much would the futaba cost

anwar

Futaba cost ? Cost of what ?
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premvijay

Dear Mr. Anwar, As advised i exchanged the wires running from the ESC to motor without any desired result. Even after exchanging the wires the same continued, when throttling up the swash moves down. And the light on the servo has become red instead of green. kindly advise further.

anwar

#32
Prem - I am sorry to say this, but I feel you have not read RotorZone's post earlier.  For this heli (and some other helis like the  TT Raptor), the swash moving down with throttle is normal ! Do not worry about it.

Make sure your lipo battery is charged, since all your experiments may have depleted it.  If the light was green  earlier and now it is red, it could be due to low battery.  Since I do not have an English manual for the TG6100M, I am not sure what the red light means.

Now the only problem remaining seems to be that of the blades not spinning with the motor.  Please confirm the following :

Case 1) When you increase throttle, does the main gears (the big white wheel) also spin ? If yes, then the problem is surely with motor spinning in the opposite direction.  Try reversing two of the 3 wires that goes from the ESC to motor.  If the first pair did not work, try another set of two wires.

Case 2) It the main gears do not spin at all when you give throttle (only the motor spins), that means you have not setup the motor correctly.  Make sure you have connected the pinion gears to the motor shaft, and those gears are correctly touching the main gears.  If you are able to rotate the main gears by hand (with the heli powered off), then you should be able to see the motor shaft also turning.

Let us know CLEARLY which of the above cases is true.

Just saw your other post. If you are getting a Futaba radio to fix your Mini-Titan, I would say you are wasting money.  The problem you are facing has to be fixed, regardless of whatever radio you are using.  If you are getting a radio for the long term, that is always a good idea.

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RotorZone

Quote from: premvijay on June 24, 2009, 03:08:42 AM
Dear Mr. Anwar, As advised i exchanged the wires running from the ESC to motor without any desired result. Even after exchanging the wires the same continued, when throttling up the swash moves down. And the light on the servo has become red instead of green. kindly advise further.
First of all I have not seen any servo with LED so far. If you meant the LED on tg6100, the red light mean HH mode and green means rate mode. This LED should not have changed when you changed the motor leads.

As Anwar said, there has to be clear communication of what exactly you are doing. It is obvious here that you are either not following instructions here exactly or doing something else which you are not communicating. You are not alone, this is a common problem with remote debugging. If you have a web cam, schedule a online chat session where the person helping you can actually see what is going on.

It is too late for you, but this advice is for any new beginners. Heli setup needs a good bit of knowledge and some eqiupment. If you do not have local help to set it up, it is a good idea to buy a heli that is ready to fly, either new or used. Even I picked up a used heli first though I already had a kit with me for this reason. And when I had any doubts building my kit, all had to do was look at how it was done in the other heli.

anwar

Prem - Any updates from yesterday ?
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premvijay

#35
Dear Mr.Anwar, I received a mail from rotor.co.in regarding my problem. they had provided a link to some website from where i downloaded and printed the manual in detail and saw to it that everything complied to as directed in the website. But even then the same problem is still persisting.

the content and link which i got from rotor.co.in for ur information only

QuoteDear Sir, Thank you for your mail. And sorry to know that you are having problem with your Mini Titan. We have many customers who have start of with the similar system as yours and are flying quite comfortably.

Forums are good source of information and discussions but they are not always right. nevertheless this info is provided by the manufacturer.http://www.rotorhobby.com/minititan_infomation.html please read this link and follow up every action., included reverse the function of TX.

Transmitter manual

Turn to the back of the transmitter and open the battery cover You will find four switch after your open the battery cover. Reverse the channel 2 ( indicated at REV) Left the rest to normal position. ( indicated at NOR)

anwar

#36
Prem - Can you please at least respond to our specific query mentioned in http://www.rcindia.org/helis/mini-titan-problem/msg2433/#msg2433 ?  Looks like our earnest efforts to help are falling on deaf ears   :(

If you have followed all of their instructions including channel 2 reversal in the radio, and your swash is moving OK, the problem seems to be with how the motor is mounted.  But without your co-operation in terms of following instructions and communicating back properly when further information is requested, this will get nowhere.   

You seem to be more interested in procuring additional hardware, while it is pretty clear that we have not established any fault with the existing ones !
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premvijay

Sorry Mr.Anwar, Was not able to do much R & D as i am out of station. Will be home by Sunday and flood you with my silly queries  ???

anwar

It is no big deal, except that you could have mentioned this much earlier !

We don't consider any questions as silly, and most of us enjoy helping one another.  There are many days when I go to field and barely get to do one flight myself, the rest of time is spent troubleshooting, fixing and testing etc for others.  It is only fair to expect the same level of earnestness from the other side too !

Let us know when you are back near your heli again.
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premvijay

sure boss dont worry i am here to bother u for a long time : ) take care and goodnight Mr.Anwar and thanks for taking all the trouble to help me out. i had shot a fresh video of my problem and would be grateful if u could provide me ur email id so i can forward it to u as the file is 5.4 MB. I have the video in my laptop, so if u give me ur email id i will attach it right now.

anwar

Please email to the address on the bottom left (green colored footer) of any page on this site.
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anwar

Got the file, but no mp4 programs can open it.  I already have most of the codec packs (like CCCP), and none of them are able to identify the file type.  Even programs that are specially built to identify codecs (like http://www.headbands.com/gspot/) are unable to identify the file type.

Please convert to some standard format like divx or avi and resend.
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premvijay


anwar

Thank you for the video.  It is clear that the swash movement is OK.  There is one problem with the swash though, its initial position itself is as if you had pulled the elevator backwards (towards you).  The swash should be perfectly parallel to the tail boom (or the ground, if you keep it flat on the ground). Currently the front of the swash (toward the front of the heli) is tilted is upwards and the back of the swash (which is towards the tail of the heli) is tilted downwards.  Please fix this by reconnecting the 3 servo arms to the right slot on the servo arm sprocket.

The big problem is that I cannot see any of the gears (the big white wheels) turning when you give throttle (although the swash moves down, which is expected).  This means that you still need to answer the question I asked in http://www.rcindia.org/helis/mini-titan-problem/msg2433/#msg2433 .  Unless you get the main gear to turn with the motor (which means the pinion gear should be connected to the motor's shaft, and the pinion gear should touch the main gear so that when the motor turns, the main gear also turns), we cannot make any progress. So please confirm by answering my post above directly, point-by-point.
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anwar

#44
Also, in the Mini-Titan manual (if you don't have it, you can download from http://www.modelflight.com.au/manuals/pdf/thunder_tiger/mini_titan_e325_manual.pdf), look at page 27.  It clearly shows how the motor pinion is touching the main gear (they have a blowout picture named "Note 2" in that page).  Make sure you have followed those steps.
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premvijay

Dear Mr.Anwar, Will check all and let u know by evening.

premvijay

Dear Mr.Anwar, Tried your suggestion and indeed it was because of the NON POSTIONING OF THE MOTOR  :P i am not putting the blame on others but because of the Heli Arriving in ARF condition i had missed checking the motor placement. anyway now the main blade spins but but the  :o tail rotor is not spinning, i have already checked the connections leading to the tail rotor like the rear gear being in symmetry with the tail belt. One solved another arises.sorry to be boring u so much because of my inexperience  {:)}

anwar

#47
Good to see we are making progress :)

If the main gear and the main blade are rotating in the right direction (when you look down to the blades from the top of the heli, the main blades should rotate in clockwise direction), then the first thing you should look at is whether the smaller gear next to the main gear is also rotating. 

If the small gear is also rotating, just follow the various pieces of hardware that transmit the motion to the tail blades (like the belt etc), and see which piece is not causing the next piece to not move correctly.

If the small gear is not rotating, then you may have put the one way bearing inside the main gear upside down.
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premvijay

Will chek and get back to you Mr.Anwar. Regards

premvijay

Dear Mr.Anwar, Like advised i checked the gears for the tail rotor and they were turning when the throttle was being given but the rotors did not move, so i looked and saw that the belt was a little loose to rectify this i pushed the tail section a bit back so that the belt would tighten on the gear. After this change the tail rotor gear was rotating but the belt itself was not moving and also the pulley system in the tail holding the belt was not moving. again i tightened the belt so that the belt was sitting properly in the tail rotor gear section. This time the tail rotor gear did not turn at all. Is there need for me to remove the tail rotor section and have a look. (but the belt is strecthed enough that it sits perfectly in the tail rotor gear.i am confused as always and am relying on u to pull me up again like u have been doing so in the past.regards. ( i have a sneaky feeling that u must be getting irritated with my queries.)  ???