Robird G31 rollup

[tony521]

Originally Posted by SDedic214

Will James is working on us getting a Robird G31 factory support forum thread in the R/C Electronics area of HeliFreak.

Yahooo!!!!!!!

Great news Scott.

[stiganas]

I had the same problem. It turns out my setup was not correct. You have to put the directions of all servos on normal in the radio and do the necessary reversing only in G31 software. You don't have a pyro compensation direction reverse in software because, one the setup is done right, the unit knows the correct direction.

Originally Posted by blade_crasher

I have flown about 6 packs through my G31 now. I'm very happy with how it flies, but it seems less "stable" in a pirouette.

Is there a setting in the performance tab that helps keep it spinning on the main-shaft so to speak. It's like the cyclic gets moved while starting a spin, and the pirouette ends up being an ugly tilting/turning thing. Much worse than how it worked with the FB setup.

What should I look at.

[jaofos]

I think I ran into another issue. Using the Castle ICE75 ESC with Fixed Endpoints in Heli mode, the ESC will not initialize through the Robird with sat's. Part of the Robird setup is to adjust the Throttle travel in the DX8 to get 100% High and Low on the Motor signal. However, the Castle ESC won't initialize at those values, to get the ESC to initialize, I have to lower the Throttle % down quite a bit below the 102% required to get 100% motor on the Robird.

Has anybody else used the Robird with Satellites and a Castle ESC?

[ifheli]

I use CC ESC`s with all of my G31`s. Don`t worry about doing the 100/100 in G31 software on throttle. You have to do per CC directions in TX.

[gothicbunny]

For those running remote ele/ail gains, what sort of % are you at?

[jaofos]

Originally Posted by ifheli

I use CC ESC`s with all of my G31`s. Don`t worry about doing the 100/100 in G31 software on throttle. You have to do per CC directions in TX.

Thanks, this helps.

I believe I also made the mistake of turning on the Governor mode right before I tried to calibrate the ESC. Having the heli spool up and ignore throttle hold was not fun. Luckly I was ready to yank the battery

[Mikej]

Originally Posted by gothicbunny

For those running remote ele/ail gains, what sort of % are you at?

I'm at 72

[Atomic Skull]

Originally Posted by cipioh

For me, the purpose of dual sats was to ensure I had an antenna on both sides of the heli, with the active antenna on one being horizontal and the other vertical. This meant that in almost all situations I would have good signal reception by the sats because of less opportunity for CF blockage and different signal planes. It's most probably overkill for a 450...especially one that will spend most of its early life hovering 10 yards aways from me...but it was fun to work out nonetheless. : )

Here's how I think my final placement will be:

Old picture (I've since replaced the Plush 60A with a YEP 80A but here's how I have mine set up.

[gothicbunny]

Originally Posted by Mikej

I'm at 72

Is that on a 0 to 100 scale or -100 to +100?

[Mikej]

Originally Posted by gothicbunny

Is that on a 0 to 100 scale or -100 to +100?

0 - 100, but -72 is the same as +72 for this setting

[Eric, Jr.]

Originally Posted by SDedic214

OK, we've got some talented guys here. If you guys want to submit designs for consideration for Team RobirdUSA shirts lets do it. We can pick a winner and I will get some made in time for the San Diego Heli Fun Fly and also for you guys. OK?

I'm in!

[gothicbunny]

Originally Posted by Mikej

0 - 100, but -72 is the same as +72 for this setting

On a 0 to 100 scale you have 72, but on the DX8 it goes from -100 to +100 so my equivalent setting would be +44.

I am assuming the remote gains map approximately as follows:

Pot / 0-100 / -100-100
___________________
7:00 / 0 / -100
8:00 / 10 / -80
9:00 / 20 / -60
10:00 / 30 / -40
11:00 / 40 / -20
12:00 / 50 / 0
1:00 / 60 / 20
2:00 / 70 / 40
3:00 / 80 / 60
4:00 / 90 / 80
5:00 / 100 / 100

[Mikej]

I'm using a DX7 so don't have any pots - I use EPAs on my Aux 2 channel which goes -100 / 0 / +100. -72 and +72 are the treated as the same by the G31 which works on a scale of 0 - 100 where 50 is 12 o'clock on the G31 pots

This is how it was explained to me by PhantonLeg
The scale goes like this, from 0 to 100 is the same as from min (CCW) to max (CW) on the knobs of G31. The same thing for 0 to -100. So 50 and -50 mean the same thing which is 12 o'clock on the knobs.

[gothicbunny]

That would mean if you were using the stock position of 12:00 on the pots without external gains you would be running no gain on cyclic.

[Mikej]

Originally Posted by gothicbunny

That would mean if you were using the stock position of 12:00 on the pots without external gains you would be running no gain on cyclic.

Nope - it's 50

Originally Posted by Mikej

I'm using a DX7 so don't have any pots - I use EPAs on my Aux 2 channel which goes -100 / 0 / +100. -72 and +72 are the treated as the same by the G31 which works on a scale of 0 - 100 where 50 is 12 o'clock on the G31 pots

This is how it was explained to me by PhantonLeg
The scale goes like this, from 0 to 100 is the same as from min (CCW) to max (CW) on the knobs of G31. The same thing for 0 to -100. So 50 and -50 mean the same thing which is 12 o'clock on the knobs.

[blade_crasher]

Mike: In the G31 software do you have both A and E gains tied to your Aux2 (Chan7) location, then just setting the End Point in both -72 and +72 seems to work for you? The Dx8 menu is a bit different. Then as you fine tune the gains, you simply adjusted your end points?

Bunny: Your table seems like it makes sense, but then I get confused. Why is 72 = 44 in your comment?

It seems like Mike is indicating that the G31 accepts either an negative or positive end point as the absolute value input for the range of 0 - 100, where 0 = full CCW and 100 is full CW.

I would like to use this feature on the G31 but I'm confused.

[Mikej]

Originally Posted by blade_crasher

Mike: In the G31 software do you have both A and E gains tied to your Aux2 (Chan7) location, then just setting the End Point in both -72 and +72 seems to work for you? The Dx8 menu is a bit different. Then as you fine tune the gains, you simply adjusted your end points?.

Yes that's correct, except I have the EPA set for 72 with the switch up and -68 with the switch down , so the gain for both Ail and ELE is +72 if switch is up, and the gain for both Ail and ELE fopr both is 68 if the switch is down.

Apologies for the confusion, try this ...

The standard G31 pots read from 0 (full counter-clockwise) to 100 (full clockwise) - default setting is 12 o'clock, which is a setting of 50.

I have both Ail and Ele gains mapped to Aux2 (a switch on my DX7), switch up is 72, switch down is 68 determined by my EPA adjustment (+72 for high, and -68 for low).

So where as standard gain setting of 12 o'clock on the G31 pot is 50, switch up for me is 72 switch down is 68. If I had +72 and -72 they are read as the same by the G31.

Hope this helps

Mike

[gothicbunny]

Okay I think I understand how it works now. Since you can't set two positive or two negative endpoints I can see why they have it that way. Here is a corrected chart:

Pot / 0-100 / -100-100
___________________
7:00 / 50 / 0
8:00 / 45,55 / +-10
9:00 / 40,60 / +-20
10:00 / 35,65 / +-30
11:00 / 30,70 / +-40
12:00 / 25,75 / +-50
1:00 / 20,80 / +-60
2:00 / 15,85 / +-70
3:00 / 10,90 / +-80
4:00 / 5,95 / +-90
5:00 / 0,100 / +-100

[Mikej]

I'll try again as my explanatory skills are a bit rubbish today, so here goes again

the standard G31 pot reads as follows
Full counter-clockwise = 0 gain
Full clock-wise = 100 gain
default 12 o'clock position = 50 gain

On my DX7 I have mapped Ail and Ele gain to AUX2, which is a switch on the DX7, and use the End Point Adjustments (EPAs) to adjust the gain setting. If the switch is up then I get a positive number in the range 0 to +100, if the switch is down I get a negative number in the range 0 to -100. Positive and negative numbers are treated as being the same number (e.g. - 72 is the same as +72, both are a setting of 72).

I am currently using switch up is +72, switch down is -68 so I can change my gain settings between 68 and 72 (default is 50).

The reason that I did this is to see if I could get my heli more stable (not that it was unstable at default of 50), so I started with settings of switch up =55 and switch down =50 and tried the current setting, landed, increased EPA (e.g. +60, -55), flew again to test, increased EPA etc., I did this until I was getting a "wobble" on sharp cyclic moves which is the tell-tale sign of a too high cyclic gain. By keeping the switch down setting at a known good setting if I got a sever wobble I could just flick the switch down to the lower level.

Hope this helps
Mike

[jaofos]

How does one tell if the phase sensor is working properly? I've got it connected to two of the motor wires on the ESC side (in the bullets with the ESC wires), when I go to calibrate the Robird Governor, I'm not getting any reading on the motor RPM. It constantly spools up and slows down until I kill the throttle.