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HelicopterAerial Photography and Video › helicommand setup on 600e trex
12-03-2007 04:08 AM  9 years agoPost 321
kookboy

rrKey Veteran

Vancouver, BC

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1. When I'm using the HC's internal head hold gyro, does the "gain" sensitivity in the transmitter matter at all, or is the HC completely in charge of the heading hold gyro now so that the transmitter's gain sensitivity setting doesn't control anything?
No GAIN TX SETTINGS !!!!! You'll run into issues and maybe a gyro confusion/loss of control.

Tx should be set as stock/default with zero gain/atv/ajustments. You trim/adj gain via the PC interface.

Also make sure your mechanical setup is spot on.

Jesse

... But honey it was only $$$

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12-03-2007 04:39 AM  9 years agoPost 322
Lon33

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Santa Monica, CA, USA

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I'm using a DX7, and my "Gyro Sensitivity" choices are:

AUTO
RATE:
0: __% [0 to 100]
1: __% [0 to 100]

The 0 and 1 represent two possible Auto/Rate percentages, either of which may be selected for each of three flight modes: Normal, Stunt, and Hold. Right now, I have all three flight modes set to "0" which simply means that whatever percentage I insert next to "0" will be the rate for all three of those modes. Are you saying that I should insert 0% ?

What about the rate on this screen, which is the second "Gyro Sensitivity" screen presented by the DX7?

RUDD D/R
RATE:
0: __% [0 to 100]
1: __% [0 to 100]

Also 0% ?

The reason I'm being so literal here is that the DX7 does not have a "stock" or "default" setting for gyro sensitivity.

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12-03-2007 02:27 PM  9 years agoPost 323
rerazor

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Mich.

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Set Tx settings to Zero and adjust gain via PC tail gyro setting.

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12-03-2007 05:40 PM  9 years agoPost 324
dl7uae

rrApprentice

Am a Kraut.

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@kookboy
I'm running out of channels with camera trigger and tilt
Jesse, if you go back to page 11 you'll find a solution:
It is possible to let AUX (for AT) and PILOT (gain/mode) share the same channel if you intend to run HOR mode only.
Parallelize both inputs by an Y-cable.
Idle state of the line is negative (HOR mode) w/ a value of HOR-gain you need. For AT triggering the line is shortly driven to a higher positive value (let's say 100%) by a push button in the TX. That causes a switch to POS mode for a short moment also - but AT-active is a dominating state anyway. Lens will be covered anyway (POS leads to HOR even for positive PILOT signal).
This wouldn't work for one's intention to use POS mode also or the internal tail gyro (tail gain and AT in parallel) unless he want to use same values for PILOT (HOR) and tail gain (NORMAL).

Parallelizing tail gain and AUX by HC's set-up btw presumes the use of NORMAL mode only (for the tail gyro).

I'm sorry I don't yet have the time to read all posts on new issues..
Chris, I'm not a 'Pro' w/ the internal tail gyro but I'm also not a 'Con' because I didn't test enough w/ it. Always using external GY401's here.

Tom

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12-03-2007 05:47 PM  9 years agoPost 325
daytonabeach

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Oslo, Norway

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Hehe, Tom, i ment pro as in professional

Never argue with an idiot, he'll drag you down to his level and beat you with experience...

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12-03-2007 06:16 PM  9 years agoPost 326
dl7uae

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Am a Kraut.

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Oops!

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12-04-2007 03:10 AM  9 years agoPost 327
Lon33

rrNovice

Santa Monica, CA, USA

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I've done what Jesse and reravor advised, i.e., set my transmitter gain to 0. But I still have the same problem.

Everything about the HC works, except the built-in tail gyro.

In other words, the swashplate remains perfectly level (in Horizontal Mode), no matter which way I tilt the heli. Also, the tail rotor responds perfectly to the transmitter stick. But the tail rotor doesn't respond at all to the HC, no matter how far to the left or right I swing the heli's nose.

Anyone have any ideas about what I should try next?

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12-04-2007 03:27 AM  9 years agoPost 328
kookboy

rrKey Veteran

Vancouver, BC

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2) how many of you are using the pilot and aux controlls to set the HC? (I'm running out of channels with camera trigger and tilt)
Tip's post, not mine

I'm using a separate DX6 for the mount/shutter,etc..

Jesse

... But honey it was only $$$

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12-04-2007 03:48 AM  9 years agoPost 329
monterey_tip

rrVeteran

Monterey, Ca - USA

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Hey Kookboy,
Do you always have someone to operate the camera or do you use 2 controllers and shoot solo? I will probably eventually set mine up that way too, but I like being able to do some AP without relying on someone's availability.

Tip

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12-04-2007 03:49 AM  9 years agoPost 330
rerazor

rrElite Veteran

Mich.

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Lon33,

Is your tail servo plugged in to the 4th input channel on the HC mixer circuit board?

Did you then center all the servos (i.e swash level and tail centered) and hold the SET button in for one second until the LED glows green, unplug power, power up again?

Plug in PC software and "read" in "All tab" settings.
What then is your gyro gain set at in your PC software? Set to aprrox. + 70.
What selection is selected under the "tail gyro" tab?
"Write" changes in "All" tab.

Bench test, results?

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12-04-2007 04:45 AM  9 years agoPost 331
Lon33

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Santa Monica, CA, USA

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rerazor,

I did each of the things you suggested, but still no movement of the tail rotor when I move the nose of the heli. Here's a screenshot of my Tail Rotor page from the HC PC-software. (It says "Not Connected" in the image, but only because I disconnected the battery to the heli before I took the screenshot.)

-Lon

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12-04-2007 09:01 AM  9 years agoPost 332
dl7uae

rrApprentice

Am a Kraut.

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Lon, the tail slider is moving if you move the rudder stick?

You set the AUX input for tail gyro's gain/mode only. With gain = zero the tail's loop is OFF - tail moving on rudder commands only.

The "gyro channel default setting" is effective only if AUX is not connected - AUX input values overriding default settings.
So you'll need a certain negative (NORMAL mode) or positive value (HH) on AUX to get tail's loop effective.

Only in the HH mode the tail slider will move if you slowly tilt the heli in the yaw axis.

To be honest - after reading all posts on that issue it is in the end not directly clear to me how the appearance of your problem is.

If you disconnect AUX the default setting of +70% (HH) should get in effect.

Tom

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12-04-2007 01:18 PM  9 years agoPost 333
rerazor

rrElite Veteran

Mich.

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Try as Tom has suggested and unplug your AUX and see if it reads default 70 and bench test.

I thought it should work.

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12-04-2007 08:33 PM  9 years agoPost 334
Lon33

rrNovice

Santa Monica, CA, USA

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Thanks Tom and rerazor,

The tail slider was moving in the correct direction when I moved the rudder stick.

I went back into my DX7 transmitter and set the "Gyro Sensitivity" numbers to 70%. But the HC's internal tail gyro still didn't work.

So I unplugged the HC's AUX cable from my AR7000 receiver, and then the tail slider moved -- but in the wrong direction! So, on the "Mixer" page of the HC PC-software, I reversed the "tail rotor servo and gyro direction." That made the tail slider move in the correct direction in response to the HC's gyro, but in the wrong direction in response the rudder stick! In other words, pointing the nose (on the bench) to the left using the rudder stick produced the opposite result as pointing the nose by hand.

So then, on the "RC & trim" page of the HC PC-software, I reversed the direction of the "yaw (tail)" . . . and now the tail slider seems to be moving in the correct direction, both when controlled with the rudder stick and when controlled by the HC gyro!

This raises the question of what the HC AUX cable is supposed to do. Or maybe I haven't programmed my transmitter correctly. The HC AUX cable is controlled by the DX7's "Gear" channel which I have set to "Gyro." (My AUX2 channel is set to "F.Mod" (Flight Mode), because that's the only 3-way switch on a DX7, so I'm connecting the HC's PILOT cable to AUX2.)

Does any of this make sense?

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12-04-2007 09:36 PM  9 years agoPost 335
kookboy

rrKey Veteran

Vancouver, BC

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Off topic

Hey Kookboy,
Do you always have someone to operate the camera or do you use 2 controllers and shoot solo? I will probably eventually set mine up that way too, but I like being able to do some AP without relying on someone's availability.

Tip
This only applies to when I operate in BC,Canada and not down in WA.

I used to shoot solo up until I began charging for my shots as a business.

I couldn't shoot solo as transport canada wouldn't allow it. There always has to be at the very least a 2nd person who can inform me/control what's happening on the ground while I'm flying (ie. crowd control, loose kids/animals, moving objects, etc...).

I can't afford to shoot a job solo and have TC get a wind of it as it would hurt my business and any others doing the same. It goes against my original proposal/flight plans that I submitted to them when I applied for my 1st SFOC.

But if I'm pissing around at the flying field or out in the wilderness, it's not an issue. In those cases, I just set the camera on continuous mode and shoot until the card fills up or I land.

Currently I have two camera people. My woman and a good friend of mine who is pretty good with short notice availability.

DX7 on heli/DX6 on mount.

Jesse

... But honey it was only $$$

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12-04-2007 10:30 PM  9 years agoPost 336
dl7uae

rrApprentice

Am a Kraut.

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Lon, I do not know anything about programming of the DX7.

Simply change to the diagnostic tab of the software and check if somewhat happens if you change the gyro_gain in your transmitter - guess it doesn't. Sure to have the right RX channel connected to AUX?

Tom

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12-05-2007 01:35 AM  9 years agoPost 337
grumpy42

rrNovice

Canada

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That made the tail slider move in the correct direction in response to the HC's gyro, but in the wrong direction in response the rudder stick! In other words, pointing the nose (on the bench) to the left using the rudder stick produced the opposite result as pointing the nose by hand.
If I understand you correctly, the tail pitch slider moves differently when you move the nose manually than when you move the rudder stick to the left. This is the correct opperation for the gyro - when you move the nose of helicopter to the left, the gyro applies right rudder to counteract the movement.
AUTO
RATE:
0: __% [0 to 100]
1: __% [0 to 100]

The 0 and 1 represent two possible Auto/Rate percentages, either of which may be selected for each of three flight modes: Normal, Stunt, and Hold. Right now, I have all three flight modes set to "0" which simply means that whatever percentage I insert next to "0" will be the rate for all three of those modes. Are you saying that I should insert 0% ?
I beleive 0 represents HH mode (but I am not sure). Just enter your desired gain percentage for the two modes (I am currently using 40%). You can use the diagnose tab in the software to verify that you are actually in HH mode.
1. When I'm using the HC's internal head hold gyro, does the "gain" sensitivity in the transmitter matter at all, or is the HC completely in charge of the heading hold gyro now so that the transmitter's gain sensitivity setting doesn't control anything?
When the HC Aux channel is connected to the receiver (and the HC aux channel is assigned to gyro mode), the internal HC gyro gain is ignored. If you disconnect the aux channel (or assign it to "autotrim switch only" ) then the HC uses its internal gyro gain ("gyro channel default setting" ).

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12-07-2007 01:31 AM  9 years agoPost 338
dl7uae

rrApprentice

Am a Kraut.

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Hi all!

As I announced I set-up HC w/ a submicro heli (Pixy Zap) - so I had a reason to play w/ the internal gyro. (Still fighting w/ Pixy's tail )

With an AUX channel assignment of 'tail gyro (gain & mode)' - and only w/ that! - HC receives the gain value for the tail gyro from the TX.

Whereas 'autotrim & gyro mode' means: Gain from the default setting, mode from the TX (negative/positive -> normal/HH).

'autotrim switch only' is not supported by the firmware version of my HC.

That means: If someone intends to use the internal gyro AND autotrim --> gain is defined via PC only! - the gyro mode (normal/OFF/HH) can be switched remotely (with the same gain for both modes!).

Tom

!!!

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12-07-2007 06:08 PM  9 years agoPost 339
Maxter

rrNovice

MSC

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Problem with setup

Hi guys!

I have a strange problem on t-rex 450 (futaba 9cps). After i installed HC 3D and also slightly adjusted linkage rods I have my t-rex tilting left (like when you push the aileron stick left) when I push the elevator stick forward. I tried trimming and adjusting rods, switching off the HC, but it doesn't help. All othe movements are OK.

What am I doing wrong??

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12-07-2007 06:28 PM  9 years agoPost 340
rerazor

rrElite Veteran

Mich.

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Tx swash setting to H1
Look in the manual pg. 20 at the picture of the diagram swash setup which is to the right of HC mixer circuit board.

On the HC mixer circuit board:
Channel 1 is left servo, channel 2 is right servo, channel 3 is pitch, channel 4 is for tail servo which you will NOT use with external tail gyro.

The mixer circuit board will have the 3 servos plugged into it.

The outputs on the mixer circuit board are not directly across from the inputs on the mixer circuit board.

i.e. servo #1 is not aileron, #2 is not elevator, and #3 is not pitch.

The labeling on the HC board for servo outputs is left servo, then right servo, and then you only have one servo left to plug in.

Plug the servos in as left, right, and then your last servo.

Select you swash type setting in PC

Move the collective up and down, and make sure all servos move up and down together at this point.

If they don't, use the software to flip the setting servo directions.

Once the collective is working all 3 servos together correctly, then move your aileron and elevator and make sure they are tilting the swash correctly.

Now enable the HC sensor and tilt your heli and make sure the swash stays level, i.e. moves opposite the direction you are tilting the heli.

If it does not, then adjust in the software the HS sensor mounting location from left side to right side or whatever to get the stabilization to be correct.

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HelicopterAerial Photography and Video › helicommand setup on 600e trex
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