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HelicopterRadio - Servo - Gyro - Gov - Batt › Ace 7000 Gyro / DS0606 Combo
03-18-2009 07:16 PM  8 years agoPost 1
mariog

rrApprentice

Westchester County,​NY

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Hello. I have the opportunity to buy a Raptor 30 with ACE 7000 Gyro / DS6006 Tail Servo combo. I have always been a Futaba GY401 kind of guy - what do you think about this combo?

Thanks.

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03-18-2009 07:41 PM  8 years agoPost 2
xxcysxx

rrKey Veteran

Baltimore, MD - USA

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its good. better than futaba 401, and so is the ds0606 servo. piro consistency is not that great, but still better than fut 401. holds great and a breeze to setup. you'll like it.

i'm using them on my raptor 30 right now.

good luck

Tam

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03-18-2009 07:44 PM  8 years agoPost 3
mariog

rrApprentice

Westchester County,​NY

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Thanks!

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03-19-2009 08:13 AM  8 years agoPost 4
crambell

rrNovice

maryborough,​queensland,​Australia

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Ace 7000 gyro

Hi xxcysxx,

Would it be possible for you to run through how you have your gyro set up. I have the R30 and it was bought as a combo with the Ace servos and gyro. I am getting tail drift (tail to left) and cannot seem to get it to hold. I have a Trex 500 with a 401 gyro and it holds the tail with no problems. I feel like I am missing something simple as I found the 401 easy to set up. I am using an Ace 6 tx that came with the combo. Any help would be greatly appreciated.

Thank you
Chris

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03-20-2009 12:51 AM  8 years agoPost 5
xxcysxx

rrKey Veteran

Baltimore, MD - USA

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well, this is what i did. try to do everything in one go.
assuming your gyro and rudder servo is working in the correct direction, and your rudder pushrod move smoothly.
reset the limit pot on the gyro to full deflection, highest pot setting. reset the travel volume (atv) on the transmitter to 100. set the gyro to rate mode using the transmitter gain channel. make sure the transmiter trim and subtrim are centered at zero. (do not attempt move the transmitter rudder stick at this time, the pitch slider will bottoms out and stall the servo)
remove the servo horn screw and reposition the servo horn on the servo output shaft so that the horn is pointing straight up as close to 90 degree as possible. if the horn look a slight bit out of center, then use rudder subtrim (not regular trim!) on the transmitter to adjust the horn to perfectly 90 degree.
at this point, observe the tail pitch slider on the rotor shaft, the idea is to get the pitch slider center. adjust the rudder pushrod ball links on the rudder end or servo end until the the pitch slider just "appear" to be center on the shaft. move the transmitter rudder stick to full left or full right and adjust the limit pot on the gyro down until the pitch slider bottoms out evenly on bothside of the shaft without stalling the servo on eigher side. you will have to adjust the pushrod ball links while adjusting the limit pot to get it to bottom out evenly.
the pitch slider is center when it bottoms out evenly on both side and just barely stall the servo evenly on both side. if you acieve this, back off the limit pot until the servo stop stalling.

set the gyro to heading hold mode and take it up to a hover, adjust the heading hold gain on the transmitter so the tail dont wag. if it drift use the regular trim to correct it.
you will have to play with the gain setting to get the prefer feel of your flying.
personally, i use a low gain setting, i cant tell you the value as i have the gain on the knob and adjust the gain with the knob while the model is flying.

should be no more adjustment from there.

this is how i set up all my helicopters with all different brands of gyro when i go through the initial setup process and it works fine for me.

have fun and good luck.

Tam

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03-21-2009 04:32 AM  8 years agoPost 6
mariog

rrApprentice

Westchester County,​NY

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I see that with this gyro, there is a switch where you can choose between 760us or 1520us. Which is appropriate when using the ACE DS0606 servo?

Thanks.

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03-21-2009 06:18 AM  8 years agoPost 7
xxcysxx

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Baltimore, MD - USA

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i have mine switched on 1520us for the ds0606 servo. that's what the gyro's instruction manual suggest.

but do check the manual again to just to confirm.

i think the 760us is narrow pulse for digital servo. the ds0606 is an analogue servo. therefore, it should use the wider pulse, 1520us.

Tam

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03-21-2009 01:18 PM  8 years agoPost 8
jsenicka

rrProfessor

Eagle River, WI

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the 0606 is a digital servo, but is uses a 1520 micro second center pulse. Only a few specialized Futaba tail servos use 760 microsecond, such as the 9251, 9256 and one of the brushless ones.

xxcysxx, you are thinking of 250 vs 333 frames per second for analog versus digital, and the Ace sets this with the digital switch, not the center pulse selector

Jim Senicka
Team Manager, GrandRC Flight Team

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03-21-2009 03:44 PM  8 years agoPost 9
xxcysxx

rrKey Veteran

Baltimore, MD - USA

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i've always though the ds0606 was a digital servo. hence the "ds" abrevition. don't know why i had an impresion it was an analogue all along.

so is the "1520us/760us" switch on the ace 7000 gyro does the same function as the ds mode switch on the futaba gy401?
the futaba gy401 instruction manual specifically mention this switch should only be turn on when using a digital gyro, and be turn off when using a non digital servo.
so does the futaba gy401 gyro ds mode switch, switches the center pulse or frame rate?
i know for certain the gy401 wouldn't work with those specialty 9251, 9256 servo. probably it doesn't support the narrow pulse for those servo. that's why i'm confuse when you brought that up.

Tam

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03-22-2009 02:24 AM  8 years agoPost 10
jsenicka

rrProfessor

Eagle River, WI

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The DS switch on the 401 changes frame rate (250 vs 333 fps). The 401 always uses 1520 center pulse.

The 7000 gyro lets you select analog or digital (frame rate) and when in digital, you can select between 1520 or 760 microsecond center.

Jim Senicka
Team Manager, GrandRC Flight Team

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03-22-2009 05:05 AM  8 years agoPost 11
xxcysxx

rrKey Veteran

Baltimore, MD - USA

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Ah ha..i just check the ace 7000 gyro and there was a ds and sa switch. Got it ! It was switch on ds by the way, just as the manual suggested. I'm liking this ace gyro better already.

I have some more question.
So the "center pulse", or the narrower 760us has better the latency? So quiker respond for gyro demand?
The jr ds8900g uses 1520us center pulse and still have an edge over futaba's finest.

so the 760us narrow pulse idea of futaba just a myth?

Tam

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03-22-2009 01:44 PM  8 years agoPost 12
jsenicka

rrProfessor

Eagle River, WI

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Not sure what you are comparing?
a 9256 or BLS series on a properly configured GY611 is amazing.
The 8900 is a good tail servo as well, but it all depends on gyro and setup

Jim Senicka
Team Manager, GrandRC Flight Team

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04-09-2009 09:57 PM  8 years agoPost 13
elios

rrNovice

Udine,Italy

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servo glitching

Hi all. I m interest on this discussion, cause i ve a raptor 30 with ACE Gyro and DS0606 servo. This servo is my problem! i know that is a coreless servo, and that is really fast and precise, but i ve a strange effect when i move my stick to middle position.
i see a terrible glitching on the pushrod.
This happens in left and right stick moving form to center to and extreme position. Speccially when i stop the stick to a middle left position the glitching is terrible!

i ve tried to set again the gyro as i read here, but nothing.
What i ve to do?

Thanks all!!!!
Andrew

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04-11-2009 05:20 AM  8 years agoPost 14
AMainMaker

rrKey Veteran

Nappanee,IN

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Mine does the same thing it twitches a little everyonce in a while but doesn't seem to be doing it in flight.
Not sure what the cause.
Jason

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06-11-2009 03:15 AM  8 years agoPost 15
crambell

rrNovice

maryborough,​queensland,​Australia

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What pulse setting do you use if you are using a futaba 9254 with the Ace 7000 gyro?

Chris

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06-11-2009 04:23 AM  8 years agoPost 16
xxcysxx

rrKey Veteran

Baltimore, MD - USA

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i've experience that once and don't understand why it does that. i just turn off the electronics and the transmitter and wait for about 10-15 second and turn it back on and all is fine. no more twitching on its own.

also, do you fold your tail blades for transportation. make sure the tail blades are straight before you turn on the receiver.

i have also "heard" the gyro doesn't work with futaba systems. but i have not witness this firsthand.
http://www.rcuniverse.com/forum/m_8.../tm.htm#8797726
http://www.runryder.com/helicopter/...hlight=12z+14mz

Tam

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