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HomeAircraftHelicopterHelicopter Main Discussion › Align gpro
09-01-2015 03:03 AM  3 years agoPost 1
joshmoha

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midland texas

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Flew my gpro many times I am not a 3d guy just flips and rolls. I have been watching runryder. Have not seen anything on the gpro.is no one using it? Thanks

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09-01-2015 04:29 AM  3 years agoPost 2
dkshema

rrMaster

Cedar Rapids, IA

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I am using a bunch of them:

Trex 700N,
Trex 550V1,
Mikado Logo 550SX,
Gaui NX4,
Trex 500 DFC conversion,
Two JR Forza 450s,
and a Gaui X3.

Having a good time with them, as well. I have a couple more I need to get around to installing. And then I need to pick up a few more to eventually switch out the remaining 3GX units I have.

Easy to set up and easy to fine tune. The Bluetooth adapter and a smart phone make fine tuning dirt simple. Actually works very well, too.

Keep in mind that not hearing about them can be a GOOD thing. Most people won't post good news (stuff that works), they tend to post bad news (things that don't work). Further, there just aren't that many going up for sale in the RR classifieds or elsewhere.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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09-01-2015 01:37 PM  3 years agoPost 3
joshmoha

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midland texas

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Nice to here from you again. You helped me set up my 450. A few months ago. Now I am setting up my trex 700n. There is a good video on the set up but they skip the nitro gov.been waiting for a video on that.

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09-02-2015 02:42 AM  3 years agoPost 4
Vaderluck

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Melbourne - Australia

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I have replaced 3GX with Gpro on my TREX600N. I am happy with it. Setting is easier than 3GX. When flying it is much more stable than 3GX, it does not have the random shaking like 3GX.

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09-02-2015 05:34 AM  3 years agoPost 5
joshmoha

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midland texas

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Are you flying nitro?

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09-02-2015 05:58 AM  3 years agoPost 6
Vaderluck

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Melbourne - Australia

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Yes OS 50 SX H

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09-02-2015 01:31 PM  3 years agoPost 7
joshmoha

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midland texas

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I have a couple of ? Will ask you when I get off work this evening. Thanks

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09-02-2015 04:17 PM  3 years agoPost 8
dkshema

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Cedar Rapids, IA

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GPro nitro governor setup is very simple and straightforward. The governor works well.

The most difficult part of setup is making sure your transmitter is set to run the governor.

What transmitter are you using?

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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09-03-2015 12:17 AM  3 years agoPost 9
Sm1nts2escape

rrNovice

MD

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dkshema Do you find the gpro has a bit of expo built into the collective? I feel like it does and have programmed a s curve in my dx7 for my G570 and the 450l I sold. Just wondering how you might have dealt with the mushy feeling collective?

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09-03-2015 12:48 AM  3 years agoPost 10
joshmoha

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midland texas

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I am using a futaba 8 not sure what it means in the manul.says speed setting is done through channel 7. Do I set the. throttle curve whit the u shape in case gov goes out? How do I power up or is there a soft start?

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09-03-2015 12:51 AM  3 years agoPost 11
joshmoha

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midland texas

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I did not notice it being mushy

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09-03-2015 01:23 AM  3 years agoPost 12
dkshema

rrMaster

Cedar Rapids, IA

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I don't notice any weirdness with the Gpro on collective.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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09-03-2015 03:07 AM  3 years agoPost 13
dkshema

rrMaster

Cedar Rapids, IA

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Josh,

You said you have a Futaba 8 channel TX, I assume it's the 8J. I took a quick trip over to Futaba land on the web and looked at the manual. It seems that when you turn on the 8J governor function, the governor speed setting channel is channel 7, and the default control is Switch C. But I guess you can reassign switches. But, it will always come out of Channel 7.

That's actually good.

Enable your transmitter governor function. I am going to assume you leave the control at its default of Switch C. That same menu should have settings for Normal, Idle 1, Idle 2, Idle 3, and Hold. That value will set the desired RPM for that mode. What I don't know is if you can set that value to a negative number, or if the range is only 0 to 100 (my DX18 allows me to go from -100 to +100 for each governor setting).

I will assume that you set the value for "Normal" to "0" and the value for "Idle 1" to "100" for the time being:

Go to this GPro display:

Watch the circled slider as you move Switch C between Normal and Idle 1. You should see the slider that's circled, move as you flip the switch. If you don't, you have other problems with the radio.

I will assume that a "0" value puts the slider at center, and the 100 value sets the slider to +100, moving to the right. Use your TX channel 7 travel adjust to get to +100 number.

At this point I believe when you flip Switch C between Normal and IDLE 1, that the slider goes from middle to +100 (to the right).
-----

Go to this menu in the GPro:

Turn the Governor feature ON using the on/off button in the upper left corner.

Go over to the Gear Ratio box on the right, and enter your heli's gear reduction ratio. (Number of teeth on the big main gear divided by the number of teeth on the motor pinion gear).

Have a linear 0 to 100% throttle curve set in your TX. Set the throttle stick to LOW, click the Min THR button. Move the throttle stick HIGH, click the Max THR buttom.

Now, go to your Transmitter governor menu and with Switch C in Normal mode position, adjust the number on the TX gyro mena next to Normal until you see the desired RPM in the Blade RPM box.

Set the switch to Idle 1, then adjust the number next to Idle 1 in the TX menu to set the Blade RPM to the desired RPM. Do the same for IDLE 2.

This sets the RPM the governor will attempt to hold for your flight modes.

Finally, go to this page in the GPro menu:

In the upper right corner you see the Governor gain. I'd turn this value down from its default of 30% before starting the motor (My NX4 motor began pulsing badly when I first started it up). I turned the Governor gain down, the pulsing stopped. I would recommend starting at a low value for Governor gain, and increase it to the point where the throttle begins to "pulse", then back off some till the pulsing goes away.

That's about it.

-----

If you don't want the governor to be active in Normal mode, leave the TX setting for Normal mode set to 0.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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09-03-2015 06:40 PM  3 years agoPost 14
joshmoha

rrApprentice

midland texas

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Thanks again going to set it up this weekend. I will let you know how it works. Thanks

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09-07-2015 03:04 AM  3 years agoPost 15
alexz

rrApprentice

shakopee mn usa

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Can one use a spektrum dx5 to set up and fly a gpro?

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09-07-2015 04:10 AM  3 years agoPost 16
dkshema

rrMaster

Cedar Rapids, IA

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No. At first glance, it would seem possible as the GPro does almost everything needed to fly a helicopter.

But the DX5 also lacks a basic helicopter programming function - the ability to mix throttle with collective pitch. Without that, you're not able to control any current collective pitch heli. The inability to set individual channel endpoints also keeps you from getting past the initial setup screen successfully. The inability to set throttle curves is a problem, as well.

If you're on a budget, pick up a good used 6 or 7 channel TX that has a heli mode.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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09-07-2015 05:00 AM  3 years agoPost 17
alexz

rrApprentice

shakopee mn usa

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Thanks Dave. For your help. At first I thought it could be possible but when I saw the transmitter Is when I questioned its ability . Thanks agen for your help.

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